Óþ-feallan

According to the Old English Dictionary:

óþ-feallan

I. to fall away, cease to have connection with :-- Óþ-fealle se wer (in the case of a man who, upon a charge of theft, being forsaken by his kinsmen, forfeits his freedom) ðám mágum the kinsmen shall have no further concern in the 'wer' L. Ed. 9; Th. i. 164, 13. Cf. æt-feallan. II. to fall away, fail, decay :-- Gif hwam seó sprǽc óþfylþ if speech fail a man, Lchdm. ii. 288, 18. Æfter his fielle wearþ ðara cásera mǽgþ offeallen (óþ-, MS. C. ) Caesarum familia consumta est, Ors. 6, 5; Swt. 262, 6. Swá clǽne hió (learning) wæs ðþfeallenu on Angelcyn so utterly was learning decayed in England, Past. pref. ; 3. 13. oþ-feallan