Niku

See also: niku, nīku, and нику

Finnish

From a vernacular form of Nikolaus.^[1]

Niku

Inflection of Niku (Kotus type 1/valo, no gradation)
nominative		Niku	Nikut
genitive		Nikun	Nikujen
partitive		Nikua	Nikuja
illative		Nikuun	Nikuihin
		singular	plural
nominative		Niku	Nikut
accusative	nom.	Niku	Nikut
accusative	gen.	Nikun	Nikut
genitive		Nikun	Nikujen
partitive		Nikua	Nikuja
inessive		Nikussa	Nikuissa
elative		Nikusta	Nikuista
illative		Nikuun	Nikuihin
adessive		Nikulla	Nikuilla
ablative		Nikulta	Nikuilta
allative		Nikulle	Nikuille
essive		Nikuna	Nikuina
translative		Nikuksi	Nikuiksi
abessive		Nikutta	Nikuitta
instructive		—	Nikuin
comitative		See the possessive forms below.

Possessive forms of Niku (Kotus type 1/valo, no gradation)

first-person singular possessor
		singular	plural
nominative		Nikuni	Nikuni
accusative	nom.	Nikuni	Nikuni
accusative	gen.	Nikuni	Nikuni
genitive		Nikuni	Nikujeni
partitive		Nikuani	Nikujani
inessive		Nikussani	Nikuissani
elative		Nikustani	Nikuistani
illative		Nikuuni	Nikuihini
adessive		Nikullani	Nikuillani
ablative		Nikultani	Nikuiltani
allative		Nikulleni	Nikuilleni
essive		Nikunani	Nikuinani
translative		Nikukseni	Nikuikseni
abessive		Nikuttani	Nikuittani
instructive		—	—
comitative		—	Nikuineni

second-person singular possessor
		singular	plural
nominative		Nikusi	Nikusi
accusative	nom.	Nikusi	Nikusi
accusative	gen.	Nikusi	Nikusi
genitive		Nikusi	Nikujesi
partitive		Nikuasi	Nikujasi
inessive		Nikussasi	Nikuissasi
elative		Nikustasi	Nikuistasi
illative		Nikuusi	Nikuihisi
adessive		Nikullasi	Nikuillasi
ablative		Nikultasi	Nikuiltasi
allative		Nikullesi	Nikuillesi
essive		Nikunasi	Nikuinasi
translative		Nikuksesi	Nikuiksesi
abessive		Nikuttasi	Nikuittasi
instructive		—	—
comitative		—	Nikuinesi

first-person plural possessor
		singular	plural
nominative		Nikumme	Nikumme
accusative	nom.	Nikumme	Nikumme
accusative	gen.	Nikumme	Nikumme
genitive		Nikumme	Nikujemme
partitive		Nikuamme	Nikujamme
inessive		Nikussamme	Nikuissamme
elative		Nikustamme	Nikuistamme
illative		Nikuumme	Nikuihimme
adessive		Nikullamme	Nikuillamme
ablative		Nikultamme	Nikuiltamme
allative		Nikullemme	Nikuillemme
essive		Nikunamme	Nikuinamme
translative		Nikuksemme	Nikuiksemme
abessive		Nikuttamme	Nikuittamme
instructive		—	—
comitative		—	Nikuinemme

second-person plural possessor
		singular	plural
nominative		Nikunne	Nikunne
accusative	nom.	Nikunne	Nikunne
accusative	gen.	Nikunne	Nikunne
genitive		Nikunne	Nikujenne
partitive		Nikuanne	Nikujanne
inessive		Nikussanne	Nikuissanne
elative		Nikustanne	Nikuistanne
illative		Nikuunne	Nikuihinne
adessive		Nikullanne	Nikuillanne
ablative		Nikultanne	Nikuiltanne
allative		Nikullenne	Nikuillenne
essive		Nikunanne	Nikuinanne
translative		Nikuksenne	Nikuiksenne
abessive		Nikuttanne	Nikuittanne
instructive		—	—
comitative		—	Nikuinenne

compounds

Niku is the 5034^th (tied with 30 other surnames) most common surname in Finland, belonging to 143 individuals, according to February 2023 data from the Digital and Population Data Services Agency of Finland.