toilyoudaoicibaDictYouDict[toil 词源字典]
toil: English has two words toil, one of them now used only in the plural. Toil ‘work’ comes via Anglo-Norman toiler ‘stir, agitate, wrangle’ from Latin tudiculāre ‘stir around’. This was derived from tudicula ‘mill for crushing olives’, a diminutive form of tudes ‘hammer’, which went back to the prehistoric base *tud- ‘hit’, source also of Latin tundere ‘beat, crush’, which gave English abstruse, protrude, etc. Toils ‘entanglements’ represents a plural use of the now archaic toil ‘net’ [16].

This denoted etymologically ‘something woven’: it came via Old French toile from Latin tēla, a contraction of an earlier *texlā, which was derived from the base *tex- ‘weave’ (source of English text, textile, etc). Toilet [16] was borrowed from French toilette, a diminutive form of toile. It originally meant ‘cloth cover’, but it gradually evolved via ‘cloth cover for a dressing table’ to ‘the act of dressing and grooming oneself’.

The sense ‘lavatory’ emerged in mid 19th-century America, from the now obsolete ‘dressing room (with lavatory attached)’, inspired no doubt by the same delicacy that produced American English bathroom ‘lavatory’. Another member of the same word-family is tiller [15], which came via Anglo-Norman telier ‘weaver’s beam’ from medieval Latin tēlārium, a derivative of tēla.
=> abstruse, protrude; technical, text, textile, texture, tiller, tissue, toilet[toil etymology, toil origin, 英语词源]
toilet (n.)youdaoicibaDictYouDict
1530s, earliest in English in an obsolete sense "cover or bag for clothes," from Middle French toilette "a cloth; a bag for clothes," diminutive of toile "cloth, net" (see toil (n.2)). Toilet acquired an association with upper class dressing by 18c., through the specific sense "a fine cloth cover on the dressing table for the articles spread upon it;" thence "the articles, collectively, used in dressing" (mirror, bottles, brushes, combs, etc.). Subsequent sense evolution in English (mostly following French uses) is to "act or process of dressing," especially the dressing and powdering of the hair (1680s); then "a dressing room" (1819), especially one with a lavatory attached; then "lavatory or porcelain plumbing fixture" (1895), an American euphemistic use.

Toilet paper is attested from 1884 (the Middle English equivalent was arse-wisp). Toilet training is recorded from 1940.