tó-feallan
This might be just a supplemental entry adding to an entry in the Main Volume.
Related §§ in Wright's OE Grammar:
In the OE text, the length is:indicated by acute accentsindicated by macronsnot indicated.
tó-feallan
AddHí wurdon gelǽdde tó þǽre láðan anlícnysse, ac heó tófeól sóna tó heora fótum formolsnod, Hml. S. 2, 374. Þysre burge getimbrunga syndon mid gelómlicum hryrum tófeallene aedificia urbis ruinis crebrescentibus prosternuntur, Gr. D. 134, 12.
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A Combined List of Abbreviations.