The Collaborative International Dictionary
Imbank
Imbank \Im*bank"\, v. t. [imp. & p. p. Imbanked; p. pr. & vb. n. Imbanking.] [Pref. im- in + bank. Cf. Embank.] To inclose or defend with a bank or banks. See Embank.
Wiktionary
imbank
vb. (archaic form of embank English)