What is the meaning of Wanen?

to misbelieve (believe falsely or incorrectly) oneself to be something

plural of waan

to expect

to think, to be of the opinion

to suspect

to wane

to moan, to wail, to complain

to sound

to lament, to bewail

to think, to suppose

to suppose, to hope, to guess

Köbler, Gerhard, Althochdeutsches Wörterbuch, (6. Auflage) 2014

Source: wiktionary.org