Un-gerípod

According to the Old English Dictionary:

un-gerípod

adj. Immature, premature :-- Unirípedes (deáþes) immaturae (mortis), Hpt. Gl. 507, 38. On ungerípedum freódóme and unstæððigum þeáwum, Ælfc. T. Grn. 17, 12. Hé forfleáh ungerípedan deáð, Homl. Th. i. 390, 31. un-geripod