Fæðm-rim

According to the Old English Dictionary:

es;

fæðm-rim

n. Fathom-measure; cŭbĭtōrum vel ulnārum nŭmĕrus :-- Is ðæt torhte lond twelfum hérra fæðmrímes that glorious land is higher by twelve of fathom-measure, Exon. 56 a; Th. 199, 21; Ph. 29. fæðm-rim