varyah "to be chosen, eligible, excellent," varanam "choosing;" Avestan verenav- "to wish, will, choose;" Gk. elpis "hope;" L. volo, velle "to wish, will, desire;" O.C.S. voljo, voliti "to will," veljo, veleti "to command;" Lith. velyti "to wish, favor," pa-vel-mi "I will," viliuos "I hope;" Welsh gwell "better"). Cf. also O.E. wel "well," lit. "according to one's wish;" wela "well-being, riches." The use as a future auxiliary was already developing in O.E. The implication of intention or volition distinguishes it from
shall, which expresses or implies obligation or necessity. Contracted forms, especially after pronouns, began to appear 16c., as in sheele for "she will." The form with an apostrophe is from 17c.
willO.E. will, willa, from P.Gmc. *weljon (cf. O.S. willio, O.N. vili, O.Fris. willa, Du. wil, O.H.G. willio, Ger. wille, Goth. wilja "will"), related to *willan "to wish" (see
will (v.)). The meaning "written document expressing a person's wishes about disposition of property
after death" is first recorded c.1380.