-ioura compound suffix, viz. -our (OF. -ur, -or, F. -eur), preceded by an i representing i, ei, e, of another element; as in saviour, ME. and AF. sauveour, OF. sauve-ur, -e-or, early OF. salvedur:—L. salvātōrem; later F. sauveur; in some cases a corruption of a different suffix, as in haviour, behaviour: see -our. Through the general later change of -our to -or, and the confusion of this with -er, several words formerly in -iour are now written -ior (as warrior), -ier (as currier, soldier).

-iour
-ior

Suffix

no longer productive Suffix added to verbs to form nouns.

behaviour, saviour
Alternative form of -our

词汇	-iour
词根词缀	OED Wiktionary -ioura compound suffix, viz. -our (OF. -ur, -or, F. -eur), preceded by an i representing i, ei, e, of another element; as in saviour, ME. and AF. sauveour, OF. sauve-ur, -e-or, early OF. salvedur:—L. salvātōrem; later F. sauveur; in some cases a corruption of a different suffix, as in haviour, behaviour: see -our. Through the general later change of -our to -or, and the confusion of this with -er, several words formerly in -iour are now written -ior (as warrior), -ier (as currier, soldier). -iour -ior Suffix no longer productive Suffix added to verbs to form nouns. behaviour, saviour Alternative form of -our
随便看	natality natant Natasha natation natatorial natatorium natch Natchez Nathan Nathaniel nation national nationalism nationalist nationality nationalization nationalize nationhood nationwide native nativism nativity nativize nat, nasc nat, nasc(naiss, naiv)

-iour-ior

Suffix

-iour
-ior