under-etan
/underetan /*
Morphological Analysis
Wordclass: Verb
Verb Class: Strong
under-etan
to eat away below, to sap; subedere :-- Ðæt mennisce mód bið undereten and áweged of his stede ðonne hit se wind strongra geswinca ástyroþ, Bt. 12; Fox 36, 17.