The only free and comprehensive online etymological dictionary of the Spanish language
capa f. (Noun) "cape"
10th cent. From Latin cappa 'id.,' first attested in the 6th cent. Of unknown origin. Suspiciously similar to other *kap(p)- roots in Italic. See also cabo.
Also the origin of the surname Capa.
Indo-European
Romance
Asturian capa, Portuguese capa, Galician capa, Catalan capa, French chape, Italian cappa, Aromanian capã, Romanian capă