The Spanish verb 'codiciar' (meaning 'to desire eagerly' or 'to covet') comes from the Latin word family centered around 'cupire' meaning 'to desire strongly'. From this Latin verb came the adjective 'cupidus' meaning 'desirous' or 'eager', which then led to the noun 'cupiditia' meaning 'desire' or 'greed'. This evolved into the Spanish noun 'codicia' (meaning 'greed' or 'desire'), and finally the verb 'codiciar' was formed by adding the standard Spanish verb suffix '-ar' to 'codicia'.

You can see how the Latin 'cup-' sound evolved into 'cod-' in Spanish, while maintaining the core meaning of strong desire or greed throughout its evolution.

A related and simpler Spanish word is 'codicia' (meaning 'greed' or 'avarice'), which is actually the noun from which 'codiciar' was derived. When you see 'codiciar' in Spanish, you can think of it as the action of experiencing 'codicia' - the act of strongly desiring or coveting something.

While the English word 'cupid' might look unrelated at first glance, it actually shares the same Latin root! 'Cupid' comes from Latin 'Cupido', the god of desire, which is related to 'cupidus' (meaning 'desirous'). Both the Spanish 'codiciar' and English 'Cupid' trace back to the Latin concept of strong desire, though Cupid represents a more romantic or erotic type of desire, while 'codiciar' typically implies a stronger sense of greed or coveting material things.