Meaning

originFrom Irish and Scottish Gaelic duan, from Middle Irish dúan, from Proto-Indo-European *dh₂p-no- (compare Old Armenian տաւն (tawn, “feast, celebration”), Ancient Greek δαπάνη (dapánē, “cost”), Old Norse tafn (“sacrificial animal”) and Latin damnum (“damage”)), from *deh₂p- (“to sacrifice”).

Etymology from Wiktionary, CC BY-SA 3.0