Proto-IE: *weyǝ- (Gr w-)
Meaning: strength, power
Old Indian: váyas- n. `enjoyment, energy, strength, vigour', vīḍáyati `to make strong or firm, strengthen', viveṣṭi, véṣati `to be active, act, work, perform'
Old Greek: ī́s, acc. ī́n/ī̂na, instr. ī̂phi f. `Kraft, Stärke'; *wī́-s: gís = himàs kaì gē̂ kaì iskhǘs Hsch.
Latin: vīs, acc. vim, abl. vī, pl. vīrēs, gen. -ium f. `Kraft, Stärke, Gewalt'
Russ. meaning: сила
