The Complex Relationship Between -id and -or

January 28, 2010 at 5:00 pm (Alchemy, Ancient Greece, Egypt, Etymology, Health and Medicine, Linguistics, Modern World, seismology, The Ancient World, The Four Humours, Water) (, , , , , , , , , , , , , , , )

The English language, notorious for its pervasive irregularities and apparent inconsistencies, includes a trend that, when applied to certain word forms, leads to some curious results. The trend to which I refer is the relationship of adjectives ending in –id to corresponding nouns ending in –or. This trend is seen exclusively amongst words with Latin roots. Here is a table containing some examples of such adjectives:

List 1: Adjectives and corresponding nouns that follow the -id --> -or pattern

It should be noted that stupor is not the exact noun form of stupid, which is actually stupidity. And, while stupidity and stupor convey different nuances, there is enough overlap in their definitions to make the noun-verb connection apparent. There are, however, just as many adjectives ending in –id with corresponding nouns that do not follow this trend. These nouns tend to end in the more common –idity and –ness. Here are some examples:

List 2: Adjectives and corresponding nouns that do not follow the -id --> -or pattern

This second list acts as a reminder of just how irregular English conjugation is. A much more interesting list, however, includes adjectives ending in –id which, if run through the -id → -or conjugation mechanism, produce curious results. The following list includes the grammatically correct noun forms of these adjectives, as well as a list of nouns ending in  -or which could possibly share some etymological relationship to the corresponding adjectives:

List 3: Adjectives with corresponding nouns that do not follow the -id --> -or pattern, but for which there exist other nouns, whether related to the initial adjectives or not, that do fall into the pattern

This is the list of most interest because, unlike the others, it does not merely consist of examples and counterexamples of the -id –> -or pattern. It presents us with an opportunity to explore the relationships between certain adjectives and the nouns that, coincidentally or not, are spelled and pronounced so as to fit the pattern established by the first list. Could the italicized nouns give us a glimpse into arcane uses of these adjectives? It requires no stretch of the imagination to see how the meaning of valid could be related to that of valor, the actions of a person possessing the Greek quality of valor being considered valid by the societal norms of the time. Similarly, it is easy to see how a relationship between liquid and liquor could exist somewhere in the recesses of word origins. But what of vapidvapor and humidhumor?

While the word vapid is most commonly used as a synonym for insipid or lifeless, the Oxford English Dictionary reveals that, in the 17th century, vapid was used to mean, “Of a damp or steamy character; dank, vaporous.” Here, it seems, lies the –id → -or connection between vapid and vapor, an outdated relationship betrayed by the modern word forms in which it no doubt resulted. To unearth the connection between humid and humor also requires the pondering of a definition that has fallen out of use. The Oxford English Dictionary lists, among its definitions of humid, several relevant usages that haven’t been common for centuries. While the primary definition is, “Slightly wet as with steam, suspended vapor, or most; moist, damp.”, several historical uses of the word include, “In medieval physiology, said of elements, humours…Said of a chemical process in which liquid is used…Of diseases: Marked by a moist discharge.” This conception of humor (a reference to the Four Humours or Temperaments, medical notions that hearken back to ancient Egypt and Greece), here referring to wetness, gave rise to our modern notion of the word, currently used to mean, “Mood natural to one’s temperament…” and, “The faculty of perceiving what is ludicrous or amusing, or of expressing it in speech, writing, or other composition.” To uncover the relationship requires a look at classical medicine and its assumptions regarding the functioning of the human body.

A chart outlining the relationship of the four humours (blood, yellow bile, black bile, and phlegm) with the physical body and its personality traits

According to this conception of human health, one whose composition is characterized by moistness walks the line between sanguine and phlegmatic. Those with sanguine temperaments were ascribed the traits of extroversion and sociability, while phlegmatics were considered kind and relaxed. It does not require a far leap to bridge the gap between the ancient notion of physiological humidity and our contemporary use of the word humorous to suggest a jovial and comedic personality. The following image shows how moisture was associated with a sanguine-phlegmatic temperament:

Having deciphered the aforementioned relationships through a bit of etymological archaeology, it seems necessary to address one final list of words. Here is a list of common nouns ending in –or with corresponding adjectives that seem to follow no discernable pattern:

List 4: Nouns ending in -or with corresponding adjectives that do not follow the -id --> -or pattern

While this last list does not present any immediately obvious clues regarding outdated word usage, it leads to another interesting line of inquiry. Why is there no adjective form of temblor in the English language, whether modern or arcane? According to the Oxford English Dictionary, the world temblor, synonymous with earthquake, is an Americanism not seen in print earlier than 1876. Since the word is so young and is not commonly used, perhaps it simply never had the chance to sprout related adjectives. Perchance this could lead to the temblorous conclusion that English word forms only emerge if they are necessary, and do not merely arise out of grammatical convention.

Some Further Reading:

An article about Greek virtue ethics

A look at the classical conception of the four bodily humours

An exhaustive list of -id adjectives that makes special note of vapor and humor. Oddly, this list suggests that valor and valid are unrelated, while glossing over the relationship between humor and humid

A chart of Latin roots that links valid and valor

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2 Comments

  1. a nogoodnik said,

    While “languidness” is a word, “languor” is also.

  2. PJ said,

    Everyone should start using ‘tremblorous’ now! Let’s see if we can get it into a dictionary. lol

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