Efen-wyrcend

According to the Old English Dictionary:

es;

efen-wyrcend

m. A co-operator:--Adrianus wæs efenwyrcend on Godes worde Theodorus arcebiscopes Hadrianus co-operator in uerbo Dei Theodori Episcopi, Bd. 5, 20; Sch. 673, 10. [Cf. O. H. Ger. eban-wirkenti co-operans.] efen-wyrcend