cook (n.)youdaoicibaDictYouDict[cook 词源字典]
Old English coc, from Vulgar Latin cocus "cook," from Latin coquus, from coquere "to cook, prepare food, ripen, digest, turn over in the mind" from PIE root *pekw- "to cook" (cognates: Oscan popina "kitchen," Sanskrit pakvah "cooked," Greek peptein, Lithuanian kepti "to bake, roast," Old Church Slavonic pecenu "roasted," Welsh poeth "cooked, baked, hot"). Germanic languages had no one native term for all types of cooking, and borrowed the Latin word (Old Saxon kok, Old High German choh, German Koch, Swedish kock).
There is the proverb, the more cooks the worse potage. [Gascoigne, 1575]
[cook etymology, cook origin, 英语词源]
cough (v.)youdaoicibaDictYouDict
early 14c., coughen, probably in Old English, but not recorded, from Proto-Germanic *kokh- (with the rough "kh" of German or of Scottish loch; cognates: Middle Dutch kochen, Middle High German kuchen). Onomatopoeic. Related: Coughed; coughing. As a noun from c. 1300.
quiver (n.)youdaoicibaDictYouDict
"case for holding arrows," early 14c., from Anglo-French quiveir, Old French quivre, cuivre, probably of Germanic origin, from Proto-Germanic *kukur "container" (cognates: Old High German kohhari, German Köcher, Old Saxon kokar, Old Frisian koker, Old English cocur "quiver"); "said to be from the language of the Huns" [Barnhart]. Related: Quiverful.
shoe (n.)youdaoicibaDictYouDict
Old English scoh "shoe," from Proto-Germanic *skokhaz (cognates: Old Norse skor, Danish and Swedish sko, Old Frisian skoch, Old Saxon skoh, Middle Dutch scoe, Dutch schoen, Old High German scuoh, German Schuh, Gothic skoh). No known cognates outside Germanic, unless it somehow is connected with PIE root *skeu- "cover" (cognates: second element in Latin ob-scurus).

Old plural form shoon lasted until 16c. Meaning "metal plate to protect a horse's hoof" is attested from late 14c. Distinction between shoe and boot (n.) is attested from c. 1400. To stand in someone's shoes "see things from his or her point of view" is attested from 1767. Old shoe as a type of something worthless is attested from late 14c.

Shoes tied to the fender of a newlywed couple's car preserves the old custom (mentioned from 1540s) of throwing an old shoe at or after someone to wish them luck. Perhaps the association is with dirtiness, on the "muck is luck" theory.
tuberculosis (n.)youdaoicibaDictYouDict
1860, "disease characterized by tubercules," a medical Latin hybrid, from Latin tuberculum "small swelling, pimple," diminutive of tuber "lump" (see tuber) + -osis, a suffix of Greek origin. So called in reference to the tubercules which form in the lungs. Originally in reference to any disease characterized by tubercules; since the discovery in 1882 of the tubercule bacillus by German bacteriologist Robert Koch (1843-1910) restricted to disease caused by this. Abbreviation T.B. attested from 1912.