Ge-twancg

According to the Old English Dictionary:

ge-twancg

Substitute ge-twanc collusion, deception :-- Getwance colludio (cf. colludio, fraude, deceptione, Wrt. Voc. ii. 77, 65), An. Ox. 1517. (In both cases the passage glossed is Ald. 21, 22.) [Cf. Prompt. Parv. twynkyn conniveo.] ge-twancg