Ge-lástfull

According to the Old English Dictionary:

ge-lástfull

Substitute: Helpful, aiding, assisting, doing service to. Cf. ge-lǽstan; V:--Ðæt ǽlc man wǽre óðrum gelástfull (alii coadjutor, Lat. vers.) ge æt spore ge æt midráde, Ll. Th. i. 232, 11. Gegaderade Cassander fird. Þá Olimpias þæt geáscade, þæt þæs folces wæs swá fela tó him gecirred, þá ne getriéwde hió þæt hiere wolde se óðer dǽl gelástful beón, ac hió fleáh tó ðǽm fæstenne audito aduentu Cassandri, Olympias, diffisa Macedonibus, in urbem concedit, Ors. 3, 11; S. 148, 18. ge-lastfull