The Spanish word 'coqueta' (meaning 'flirtatious woman') comes from the French word 'coquette' with the same meaning. This French term derives from 'coq' meaning 'rooster', which evolved from Old French 'coc'. Going further back, we find Late Latin 'coccus' (also meaning 'rooster'), which ultimately comes from Latin 'coco', an onomatopoeia imitating the clucking sound that chickens make.

The semantic evolution is quite interesting - the connection between a rooster and flirtatiousness comes from the strutting, showy behavior of roosters, particularly when they're trying to attract hens. This metaphorical association of showing off and seeking attention carried over into describing human behavior, particularly in the context of flirting or seeking romantic attention.

A related Spanish word is 'coco' (coconut), though this follows a different semantic path. While both words ultimately trace back to Latin origins involving round, head-like shapes (as roosters have distinctive heads/combs), they evolved differently in Spanish.

English speakers might recognize this word's connection to 'coquette' and 'coquet' (both meaning flirtatious), which were borrowed directly from French. The word 'cocky', meaning arrogant or overconfident, also shares the same rooster-related etymology, referring to the proud strut of a rooster. Even the word 'cock' meaning rooster is related, though this usage is now less common in American English.