Siquis, siqua, siquod, vel siquid. Plin. iun.If any.Siquid tale acciderit.Cic.Siquid cum periculo experiri velis, in Caria id potissimum est facien dum.Cic.Siquo pacto potes.Cic.If you tan by any meanes.
Lewis and Short: Latin dictionary
sī-quis or sī-qui, sīqua, sīquid or sīquod, or separately, sī quis, etc., indef. pron. (v. Zumpt, Gr. 740), if any, if any one: si quis recte Tractaret, Ter. Heaut. 1, 1, 100: si qui (filius) natus esset, Cic. Clu. 12, 33: si qua tui Corydonis habet te cura, Verg. E. 7, 40.—Adverb.: si qui and si qua, if in any way, if by any means: si qui, Liv. 3, 64 fin.; Plaut. Trin. 1, 2, 83: si qua, id. Cist. 1, 3, 35; Verg. A. 1, 18; Hor. C. 3, 14, 19: si quo,