Bosworth Toller's

Anglo-Saxon

Dictionary online

un-andergilde

(adj.)
Grammar
un-andergilde, In the passage given this word seems intended to render ' quod non vilescat', and so should mean (?)
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valuable

efne-

(prefix)
Grammar
efne-, This form is used in the Northern specimens to render the prefix con- in many Latin verbs, e. g. efne-árísa con-surgere, efne-ceiga con-vocare, efne-fornioma com-prehendere, efne-senda
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com-mittere. For other compounds