The word occurs once in the surviving Old English corpus. It is addressed, it is given the epithet mother of earth, and it stands where a name would stand. It has been read as a lost goddess name, as a title, as a loanword, as a corruption of another word, and as an exclamatory particle that is not a name at all. None of these has been accepted, and the reason is not that scholars are divided between defended positions but that a single occurrence gives nothing to test a proposal against. Work on it was begun and could not be concluded.
What would resolve this A second attestation of the word in any Old English or related source: a charm, a gloss, a place name or a personal name element, showing it in a context that constrains its meaning. Old English glossaries and the English place-name survey have been searched, and re-running that search against material catalogued since, including manuscript fragments and minor place-name collections, is the practical task. A continental Germanic cognate in a comparable ritual context would serve equally well.
OpenOld English philology, Germanic comparative linguistics and English place-name studyOswald Cockayne, Leechdoms, Wortcunning and Starcraft of Early England