Although this isolated attestation may be a misreading of the much more current novelement2, the word in itself makes sense as an adverbial form of noef2.
adv.
1newly, for the first time:
(
1410-15; MS: c.1415-20
)
q'a moy un chyvalle ové prochein entrevenant vous vouchez sauf de venir, sur lequel as parties desirés je puis venir novement
420.85B5
[noevement] (1410-15)