The word 'tauten' is a relatively modern English formation, emerging in the early 19th century. It is constructed by appending the productive Germanic verb-forming suffix '-en' to the pre-existing adjective 'taut,' which itself has a long but obscure history in English, likely descending from a nautical term for a tightly pulled rope. The logic of the word is transparently synthetic: the suffix activates the state described by the root, creating a verb that means "to make or become taut." This follows a common pattern in English, where adjectives like 'tight,' 'soft,' or 'dark' generate verbs ('tighten,' 'soften,' 'darken') through the same morphological process, elegantly capturing the action of inducing a specific quality.

Structure: taut (tight) + en (verb-forming suffix) - taut: From Middle English tought, of uncertain origin, possibly related to Old English togen, past participle of tēon (to pull, drag). Its functional role is the adjectival root meaning "tightly drawn." - en: A verb-forming suffix of Germanic origin (Old English -nian), used to form verbs meaning "to become or make something have the quality of" the root word.