What is the meaning of Wellen?

to soak, to soften by putting into water

plural of wel

to wave

to well up

to boil

to boil, to bubble

to choose

to want

to choose

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

Joseph Wright, An Old High German Primer, Second Edition

Source: wiktionary.org