Survey of English Place-Names

Etymology

The Hasse, Great Hasse Fm, Little Hasse Fm and Hasse Drove [hæsi]. Cf. Wolmereshaslond 1404Ct , the Hasse 1636 BedL, Hassecroft 1636Eg , Great , Little Hasse Drove 18..Map , The Hasse of Soham 1829 Wells.Cf. also Hassecroft 1251ElyCouch , 1277Ely , Hascroft (e )1460, 1587Ct , Hascroft dyke 1428 Imb (Tydd St Giles), Hesland c. 1295ElyM , Prykkeshasse 15thEly (Sutton), Haselond 15thPembroke (Isleham), Hassedole 1252 Rams in Upwood (Hu). hasse is a difficult word. The only suggestion that can be made is that it is the stem from which the equally difficult OE  hassuc , 'coarse grass,' is derived. The sense 'coarse grass' would not be inappropriate for places in these fenland parishes.