billyoudaoicibaDictYouDict
bill: There are three distinct words bill in English (not counting the proper name), and of them all, the most recent is the commonest. Bill ‘note of charges’ [14] comes from Anglo-Latin billa, which is probably a variant of Latin bulla ‘_document, seal’ (as in ‘papal bull’). English billet [15], as in ‘billeting soldiers on a house’, was originally a diminutive form of billa (French billet ‘letter’ comes from the same source). Bill ‘hook-bladed weapon’ [OE], now found mainly in billhook, comes from a prehistoric West Germanic *bilja, which may be based ultimately on Indo-European *bhid-, source of English bite. Bill ‘beak’ [OE] may be related to bill ‘weapon’, but this is not clear.

The verbal sense ‘caress’, as in ‘bill and coo’, is 16th-century; it arose from the courting behaviour of doves stroking each other’s beaks.
=> billet
ambition (n.)youdaoicibaDictYouDict
mid-14c., from Middle French ambition or directly from Latin ambitionem (nominative ambitio) "a going around," especially to solicit votes, hence "a striving for favor, courting, flattery; a desire for honor, thirst for popularity," noun of action from past participle stem of ambire "to go around" (see ambient).

Rarely used in the literal sense in English, where it carries the secondary Latin sense of "eager or inordinate desire of honor or preferment." In early use always pejorative, of inordinate or overreaching desire; ambition was grouped with pride and vainglory.
court (v.)youdaoicibaDictYouDict
"woo, offer homage," as one does at court, 1570s; see court (n.). Related: Courted; courting.
go together (v.)youdaoicibaDictYouDict
1520s, "accompany," see go (v.) + together (adv.). From 1710 as "agree with, harmonize with;" 1899 as "be courting."
pavan (n.)youdaoicibaDictYouDict
"slow, stately dance," 1530s, from French pavane (1520s), probably from Spanish pavana, from pavo "peacock" (from Latin pavo), in reference to the bird's courting movements. But some see an Italian origin and trace the name to Padovana "Paduan." Possibly there was a merger of two distinct dance words.
prissy (adj.)youdaoicibaDictYouDict
1895, probably Southern U.S. dialect, first attested in Joel Chandler Harris, perhaps an alteration of precise (q.v.), or a merger of prim and sissy [OED]. Related: Prissily; prissiness.
["]Then Mrs Blue Hen rumpled up her feathers and got mad with herself, and went to setting. I reckon that's what you call it. I've heard some call it 'setting' and others 'sitting.' Once, when I was courting, I spoke of a sitting hen, but the young lady said I was too prissy for anything."
"What is prissy?" asked Sweetest Susan.
Mr. Rabbit shut his eyes and scratched his ear. Then he shook his head slowly.
"It's nothing but a girl's word," remarked Mrs. Meadows by way of explanation. "It means that somebody's trying hard to show off."
"I reckon that's so," said Mr. Rabbit, opening his eyes. He appeared to be much relieved.
[Joel Chandler Harris, "Mr. Rabbit at Home"]