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Meaning & History
The first element of this name is either derived from Lithuanian mantus meaning "intelligent" (see Daumantas) or from Lithuanian manta meaning "property, estate" as well as "wealth, riches, fortune". The second element is derived from old Lithuanian gailas, which usually means "strong, potent" but has also been found to mean "sharp, jagged" as well as "angry, fierce, violent" and "miserable, sorrowful, remorseful". Also compare the modern Lithuanian noun galia meaning "power, might, force".