Dictionary of the Lithuanian Language.
šiurma — 2 ךiurmà sf. (4) Š, FrnW, (2) NdŽ, KŽ; N, [K], LL242, BŽ490, Rtr žr. surma … Dictionary of the Lithuanian Language
šurma — ךurma sf. CII388, KŽ = 2 šiurma … Dictionary of the Lithuanian Language