This word, together with its derivative noefantisme, seems to be attested only in this fifteenth-century text, and appears to be a contamination of noef1 and nonante.
(
c.1375?; MS: s.xv1
)
septant et un et cetera, octant et un, noefant (var. (G: s.xiv4/4) neofant; (A: c.1425) noefaunt; (T: s.xiv1/4) noeffant) et un et cetera, cent, cent et un et cetera
(D) 18.7
noefant (c.1375 (?))