Proto-IE: *dhēy-
Meaning: to suck (milk), to suckle
Old Indian: dháyati, inf. dhā́tave, fut. dhāsyati, aor. ádhāt, pf. 1 pl. dadhimá, 3 pl. dadhúḥ `to suck, drink', ptc. dhītá-; dhinoti `to nourish, satiate', ptc. dhita-; dhāyas- `nourishing, refreshing', n. `the act of nourishing', dhāyú- `voracious', dhārú- `sucking', su-dhā f. `nectar', dhātrī f. `nurse, mother', dhenú- f. `yielding or giving milk'; dhénā f. `milch cow'; dádhi n. (gen. dadhnás) `coagulated milk'
Avestan: daēnu- `Weibchen von 4füssigen Tieren'
Other Iranian: OPers dadan `sauere Milch'
Armenian: diem `sauge', stn-di `Säugling', da(i)l `Biestmilch', daycak `Amme'
Old Greek: inf. thē̂sthai̯, aor. thḗsato, ptc. thēsámeno- `saugen', act. aor. thē̂sai = thrépsai Hsch.; thēlǟ́ f. `Mutterbrust, Zitze', thē̂lü-s, -ei̯a, -ü `weiblich', tithḗnǟ, títthǟ f. `Amme'; thḗnion = gála Hsch.
Latin: fēlāre (/ fellāre) `saugen', fīlius, -ī m. `Sohn'; fēlīx, -īcis `f ruchbar, fruchttragend', fēcundus, -a `fruchtbar, ergiebig', fētus, -ūs `das Zeugen, Gebären, Werfen; Sprössling, Kind', fētus, -a `befruchtet, schwanger, trächtig; was geboren hat', fēnus, -oris/-eris `Zinsen, Wucher, Ertrag'
Other Italic: Umbr feliuf, filiu `lactantes'
Celtic: OIr dīnu `Lamm', dīth `suxit', denaid `er saugt', MIr del `Zitze', delech `Milchkuh'; Bret denaff `sauge'
Albanian: ? djaɵɛ `Käse', deĺe `Schaf'
Russ. meaning: сосать грудь, кормить грудью
References: WP I 829 f
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