"servile or insincere praise," late 14c., from Old French adulacion, from Latin adulationem (nominative adulatio) "a fawning; flattery, cringing courtesy," noun of action from past-participle stem of adulari "to flatter, fawn upon."
This is usually said to be from ad "to" (see ad-) + a stem meaning "tail," from a PIE *ul- "the tail" (source also of Sanskrit valah "tail-hair," and Lithuanian valai "horse's tail"). The original notion would be "to wag the tail" like a fawning dog (compare Greek sainein "to wag the tail," also "to flatter;" also see wheedle).
But de Vaan finds phonetic problems with these and concludes the etymology is uncertain, though he proposes a connection with avidus "eager," via *adulo- "who is eager toward something," hence "a flatterer." Adulation may proceed from true blind worship or be insincere, from hope of advantage.
c. 1300, perhaps from Middle Low German *smilen or a Scandinavian source (such as Danish smile "smile," Swedish smila "smile, smirk, simper, fawn"), from Proto-Germanic *smil-, extended form of PIE root *smei- "to laugh, smile" (source also of Sanskrit smayate "smiles;" Latvian smiêt "to laugh;" Latin mirus "wonderful," mirari "to wonder;" Old English smerian "to laugh at, scorn," Old High German smieron "to smile"). Related: Smiled; smiling.
It gradually pushed the usual Old English word, smearcian (modern smirk), into a specific, unpleasant sense. Of the eyes, from 1759. Figuratively, as indicating favor or encouragement, from c. 1400. Romance, Celtic, and Slavic languages tend to use a diminutive of the word for "laugh" to mean "smile" (such as Latin ridere "laugh;" subridere "smile"), perhaps literally "small laugh" or "low laugh."
1826, "light, two- or four-wheeled horse-drawn carriage," a colloquial London shortening of cabriolet, a type of covered horse-drawn carriage (1763), from French cabriolet (18c.), diminutive of cabriole "a leap, a caper," earlier capriole (16c.), from Italian capriola "a caper, frisk, leap," literally "a leap like that of a kid goat," from capriola "a kid, a fawn," from Latin capreolus "wild goat, roebuck," from caper, capri "he-goat, buck," from PIE *kap-ro- "he-goat, buck" (source also of Old Irish gabor, Welsh gafr, Old English hæfr, Old Norse hafr "he-goat"). The carriages were noted for their springy suspensions.
Originally a passenger-vehicle drawn by two or four horses; it was introduced into London from Paris in 1820. Extended to hansoms and other types of carriages, then extended to similar-looking parts of locomotives (1851). Applied especially to public horse carriages, then to automobiles-for-hire (1899) when these began to replace them.
late 13c., "to rub down a horse," from Anglo-French curreier "to curry-comb a horse," from Old French correier "put in order, prepare, curry," from con-, intensive prefix (see com-), + reier "arrange," from a Germanic source (see ready). Related: Curried; currying.
To curry favor "flatter, seek favor by officious show of courtesy or kindness" is an early 16c. folk-etymology alteration of curry favel (c. 1400) from Old French correier fauvel "to be false, hypocritical," literally "to curry the chestnut horse," chestnut horses in medieval French allegories being symbols of cunning and deceit. Compare German den falben (hengst) streichen "to flatter, cajole," literally "to stroke the dun-colored horse."
Old French fauvel (later fauveau) "fallow, dun," though the exact color intended in the early uses is vague, is a diminutive of fauve "fawn-colored horse, dark-colored thing, dull," for which see Fauvist. The secondary sense here is entangled with similar-sounding Old French favele "lying, deception," from Latin fabella, diminutive of fabula (see fable (n.)). In Middle English, favel was a common name for a horse, while the identical favel or fauvel (from Old French favele) meant "flattery, insincerity; duplicity, guile, intrigue," and was the name of a character in "Piers Plowman."