The only free and comprehensive online etymological dictionary of the Spanish language
forma f. (Noun) "form"
13th cent. From Latin forma 'id.,' but then of disputed etymology. Perhaps borrowed from Etruscan *morma, itself borrowed from the word from Greek μόρφα (mórpha) "bodily form." Of unknown origin.
Indo-European
Romance
Portuguese forma, Galician forma, French forme, Italian forma, Romanian formă