Ссылки:МССНЯ 334, ОСНЯ 2, 62-63; ND 1382 *muhi (or *mAwhi, *muhyV) 'water, fluid' ( + incorr. TM). The attribution of Alt. *umV 'drink' is questionable (metathesis? original structure *HumVwV ?), but probable; the word does not seem to have any alternative etymology.