- HerKunft: c. 1386, from Anglo-Fr. estendre (1292), from L. extendere "stretch out," from ex- "out" + tendere "to stretch" (see tenet). Extent (c.1330) is older in Eng., from Anglo-Fr. estente "valuation of land, stretch of land," from fem. pp. of O.Fr. extendre "extend," from L. extendere