In both citations the noun may also be read as the prefixed form aragerie (cf. commentary of rager). Ultimately, both interpretations produce equally plausible lexemes.
s.
1(fit of) madness, insanity, frenzy:
(
1321
)
fut aragé et corut en sa ragerie (l. s’aragerie?) a Tamise et la se neia meime
Ed II xxvi.i 93
ragerie (s.xiii2)