-iainen

See also: -iäinen and iäinen

Finnish

Etymology

Originally -jainen, from -ja +‎ -inen.

Suffix

-iainen (front vowel harmony variant -iäinen)

1. Forms certain nouns.

   ‎tulla (“to come”) + ‎-iainen → ‎tuliainen (“souvenir”)

2. Forms names of ceremonies from verbs or nouns (used in plural form).

   ‎avata (“to open”) + ‎-iainen → ‎avajaiset (“opening”)

   ‎haudata (“to bury”) + ‎-iainen → ‎hautajaiset (“funeral”)

   ‎fuksi (“university freshman”) + ‎-iainen → ‎fuksiaiset (“initiation ritual event in a university”)

3. Forms certain nouns, particularly vulgar nouns or names of insects.

   ‎paska (“shit”) + ‎-iainen → ‎paskiainen (“bastard, asshole”)

   ‎muta (“mud”) + ‎-iainen → ‎mutiainen (“dark-skinned person”)

   ‎kuori (“crust”) + ‎-iainen → ‎kuoriainen (“beetle”)

   ‎ripsi (“cilium”) + ‎-iainen → ‎ripsiäinen (“thrips”)

Declension

Inflection of -iainen (Kotus type 38/nainen, no gradation)
nominative		-iainen	-iaiset
genitive		-iaisen	-iaisten -iaisien
partitive		-iaista	-iaisia
illative		-iaiseen	-iaisiin
		singular	plural
nominative		-iainen	-iaiset
accusative	nom.	-iainen	-iaiset
	gen.	-iaisen
genitive		-iaisen	-iaisten -iaisien
partitive		-iaista	-iaisia
inessive		-iaisessa	-iaisissa
elative		-iaisesta	-iaisista
illative		-iaiseen	-iaisiin
adessive		-iaisella	-iaisilla
ablative		-iaiselta	-iaisilta
allative		-iaiselle	-iaisille
essive		-iaisena	-iaisina
translative		-iaiseksi	-iaisiksi
instructive		—	-iaisin
abessive		-iaisetta	-iaisitta
comitative		—	-iaisineen

Possessive forms of -iainen (type nainen)
possessor	singular	plural
1st person	-iaiseni	-iaisemme
2nd person	-iaisesi	-iaisenne
3rd person	-iaisensa

Derived terms

► Finnish words suffixed with -iainen