The only free and comprehensive online etymological dictionary of the Spanish language
haz (1) f. (Noun) "face"
10th cent. Old Spanish faz /hadz/. 15th cent. haz. From Vulgar Latin faces "face." From Latin facies "face," "shape."
Of unknown origin.
Romance: Western Vulgar Latin: Portuguese face, Galician face, Catalan faç, French face, Italian faccia; Eastern Vulgar Latin: Aromanian fatsã, Romanian fatscha; Sardinian: fache
In the 3rd or 4th cent. text Appendix Probi we find the line: facies non fa[ces] "[the word for 'face' is] facies, not faces." The author's spelling correction proves how the word was pronounced by common speakers, and offers a rare glimpse of the evolution of Latin into Romance languages such as Spanish.