The Spanish word 'fecha' (meaning 'date') comes from the Latin word 'facta', which was the feminine form of the past participle of 'facere' meaning 'to do' or 'to make'. The evolution from 'facta' to 'fecha' involved both sound changes (with 'ct' becoming 'ch' in Spanish) and a semantic shift from the general concept of 'something done/made' to the more specific meaning of a 'date' - essentially, when something was done or made.

Several common Spanish words share this Latin root 'facere', including 'hacer' (to do/make), 'hecho' (fact, deed, or done), and 'fácil' (easy). You can see how all these words relate to the concept of 'doing' or 'making' something. The connection between 'fecha' and 'hecho' is particularly clear, as they both developed from the past participle form of the Latin verb.

Many English words are related to this same Latin root 'facere', including 'fact', 'factory', 'facile', and 'affect'. The English word 'fact' is particularly close to the original Latin 'facta', both referring to something that has been done or made and therefore is true. While 'fecha' specialized to mean 'date', these English descendants maintained meanings more closely related to making, doing, or establishing truth.