also reevaluation, "a second or further evaluation," 1905, noun of action from re-evaluate.
early 14c., "imposition of taxes," from Anglo-French taxacioun, Old French taxacion, from Latin taxationem (nominative taxatio) "a rating, valuing, appraisal," noun of action from past-participle stem of taxare "evaluate, estimate," also "censure, charge" (see tax (v.)).
German tasche "pocket" is from the same Vulgar Latin source (via Old High German tasca), with presumable sense evolution from "amount of work imposed by some authority," to "payment for that work," to "wages," to "pocket into which money is put," to "any pocket."
c. 1300, gessen "to infer from observation, perceive, find out; form an opinion, judge, decide, discern; evaluate, estimate the number, importance, etc. of," perhaps from Scandinavian (compare Middle Danish gitse, getze "to guess," Old Norse geta "guess, get"), or from or influenced by Middle Dutch gessen, Middle Low German gissen "to guess," all from Proto-Germanic *getan "to get" (see get (v.)).
The prehistoric sense evolution then would be from "get," to "take aim at," to "to estimate." Meaning "to hit upon the right answer" is from 1540s. Spelling with gu- is late 16c., sometimes attributed to Caxton and his early experience as a printer in Bruges. Related: Guessed; guessing. Guessing game attested from 1650s. To keep (someone) guessing "keep him in a state of suspense" is from 1896, American English.
[T]he legitimate, English sense of this word is to conjecture; but with us, and especially in New England, it is constantly used in common conversation instead of to believe, to suppose, to think, to imagine, to fancy. [Bartlett, "Dictionary of Americanisms," 1848]
c. 1300, "to touch, to handle," from Old French taster "to taste, sample by mouth; enjoy" (13c.), earlier "to feel, touch, pat, stroke" (12c., Modern French tâter), from Vulgar Latin *tastare, apparently an alteration (perhaps by influence of gustare) of taxtare, a frequentative form of Latin taxare "evaluate, handle" (see tax (v.)). Meaning "to take a little food or drink" is from c. 1300; that of "to perceive by sense of taste" is recorded from mid-14c. Of substances, "to have a certain taste or flavor," it is attested from 1550s (replaced native smack (v.3) in this sense). Another PIE root in this sense was *geus- "to taste; to choose."
The Hindus recognized six principal varieties of taste with sixty-three possible mixtures ... the Greeks eight .... These included the four that are now regarded as fundamental, namely 'sweet,' 'bitter,' 'acid,' 'salt.' ... The others were 'pungent' (Gk. drimys, Skt. katuka-), 'astringent' (Gk. stryphnos, Skt. kasaya-), and, for the Greeks, 'rough, harsh' (austeros), 'oily, greasy' (liparos), with the occasional addition of 'winy' (oinodes). [Carl Darling Buck, "A Dictionary of Selected Synonyms in the Principal Indo-European Languages," 1949]
Sense of "to know by experience" is from 1520s. Related: Tasted; tasting. Taste buds is from 1879; also taste goblets.
c. 1200, prēven, pruven, proven "to try by experience or by a test or standard; evaluate; demonstrate in practice," from Old French prover, pruver "show; convince; put to the test" (11c., Modern French prouver), from Latin probare "to make good; esteem, represent as good; make credible, show, demonstrate; test, inspect; judge by trial" (source also of Spanish probar, Italian probare, and English probe), from probus "worthy, good, upright, virtuous."
This is from PIE *pro-bhwo- "being in front," from *pro-, extended form of root *per- (1) "forward," hence "in front of," + root *bhu- "to be," source also of Latin fui "I have been," futurus "about to be;" Old English beon "to be;" see be.
From early 13c. as "render certain, put out of doubt," also "establish the validity or authenticity of a will, etc." By c. 1300 as "test and find worthy, virtuous, false, etc.," also "find out, discover, ascertain; prove by argument." By mid-14c. as "check the accuracy of." The meaning "be found to be (a hero, coward, etc.) by experience or trial" is by late 14c.
The word had many more senses and broader application in Middle English than Modern English: "to experience; to strive, endeavor; act, accomplish; thrive, succeed." Also in Middle English in a now-obsolete sense of "approve, sanction, praise" (c. 1300; compare approve). Related: Proved; proven; proving. Proving ground "place used for firing cannons for making ballistics tests and testing powder" is by 1837.