10th cent. From Latin manus 'id.'
From Proto-Italic *man-u- 'id.' From Proto-Indo-European *m̥h2-no- 'id.' From a root *meh2- of uncertain value, but likely connected to waving or summoning.
Romance: Western Vulgar Latin: Asturian mano, Portuguese mão, Galician man, Catalan mà, French main, Italian mano; Eastern Vulgar Latin: Aromanian mãnã, Romanian mână; Sardinian: manu
Italic: Oscan manim "hand," Umbrian manuve "on the hand," South Picene manus "by the hand"
Indo-European: Celtic: Old Irish muin "protection," Middle Welsh mynawc "prince;" Germanic: Old Norse mund "hand," Old High German munt "hand," "protection," Old English mund 'id.;' Hellenic: Ancient Greek μάρη (máre) "hand;" Anatolian: Hittite manii̯aḫḫ-i "to distribute," "to hand over"