The Spanish word 'chico' (meaning 'small' or 'boy') comes from the Latin word 'ciccum', which referred to the thin membrane inside a pomegranate and, by extension, came to mean 'something of little value'. Over time, the meaning evolved from describing something tiny and insignificant to simply meaning 'small' in Spanish, and then extended to mean 'boy' (literally a small person). This semantic evolution from 'worthless membrane' to 'small' to 'boy' shows how meanings can shift dramatically over time while maintaining a connected thread of meaning related to smallness or diminutive size.

Some common related Spanish words include 'chica' (girl), 'chicle' (chewing gum, originally referring to small pieces), and 'chiquito/a' (very small, tiny), all sharing the same root meaning of smallness. The diminutive suffix '-ico/a' (as in 'perrico' - little dog) is also thought to be related to this same origin.

While English doesn't have many direct cognates from the Latin 'ciccum', the Spanish word 'chico' has entered English vocabulary through cultural contact, particularly in the southwestern United States, where 'chico' is sometimes used informally to mean 'boy' or 'guy'. The word also appears in some place names like Chico, California.