Open Æcerbot
Why It Is Open 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 Settle It 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.
Expertise Needed Old English philology, Germanic comparative linguistics and English place-name study
Question posed in
Leechdoms, Wortcunning and Starcraft of Early England, Oswald Cockayne.