v. Obs. Forms: 1 besincan, 2–3 bisinken; Pa. t. -sank; Pa. pple. -sunken. [OE. besincan str. vb., f. BE- 2 + sincan to SINK.]
1. intr. To sink, fall down through any substance.
c. 893. K. Ælfred, Oros., III. xi. 10. Sio burʓ besanc on eorþan.
c. 1230. Hali Meid., 33. Hwase lið ileinen deope bisunken.
2. trans. To submerge. For BESENCH.
c. 1200. Trin. Coll. Hom., 177. Þe storm bisinkeð þe ship.
