Sippu

Finnish

Of the same origin as Sipi.^[1]

Sippu

Inflection of Sippu (Kotus type 1*B/valo, pp-p gradation)
nominative		Sippu	Siput
genitive		Sipun	Sippujen
partitive		Sippua	Sippuja
illative		Sippuun	Sippuihin
		singular	plural
nominative		Sippu	Siput
accusative	nom.	Sippu	Siput
accusative	gen.	Sipun	Siput
genitive		Sipun	Sippujen
partitive		Sippua	Sippuja
inessive		Sipussa	Sipuissa
elative		Sipusta	Sipuista
illative		Sippuun	Sippuihin
adessive		Sipulla	Sipuilla
ablative		Sipulta	Sipuilta
allative		Sipulle	Sipuille
essive		Sippuna	Sippuina
translative		Sipuksi	Sipuiksi
abessive		Siputta	Sipuitta
instructive		—	Sipuin
comitative		See the possessive forms below.

Possessive forms of Sippu (Kotus type 1*B/valo, pp-p gradation)

first-person singular possessor
		singular	plural
nominative		Sippuni	Sippuni
accusative	nom.	Sippuni	Sippuni
accusative	gen.	Sippuni	Sippuni
genitive		Sippuni	Sippujeni
partitive		Sippuani	Sippujani
inessive		Sipussani	Sipuissani
elative		Sipustani	Sipuistani
illative		Sippuuni	Sippuihini
adessive		Sipullani	Sipuillani
ablative		Sipultani	Sipuiltani
allative		Sipulleni	Sipuilleni
essive		Sippunani	Sippuinani
translative		Sipukseni	Sipuikseni
abessive		Siputtani	Sipuittani
instructive		—	—
comitative		—	Sippuineni

second-person singular possessor
		singular	plural
nominative		Sippusi	Sippusi
accusative	nom.	Sippusi	Sippusi
accusative	gen.	Sippusi	Sippusi
genitive		Sippusi	Sippujesi
partitive		Sippuasi	Sippujasi
inessive		Sipussasi	Sipuissasi
elative		Sipustasi	Sipuistasi
illative		Sippuusi	Sippuihisi
adessive		Sipullasi	Sipuillasi
ablative		Sipultasi	Sipuiltasi
allative		Sipullesi	Sipuillesi
essive		Sippunasi	Sippuinasi
translative		Sipuksesi	Sipuiksesi
abessive		Siputtasi	Sipuittasi
instructive		—	—
comitative		—	Sippuinesi

first-person plural possessor
		singular	plural
nominative		Sippumme	Sippumme
accusative	nom.	Sippumme	Sippumme
accusative	gen.	Sippumme	Sippumme
genitive		Sippumme	Sippujemme
partitive		Sippuamme	Sippujamme
inessive		Sipussamme	Sipuissamme
elative		Sipustamme	Sipuistamme
illative		Sippuumme	Sippuihimme
adessive		Sipullamme	Sipuillamme
ablative		Sipultamme	Sipuiltamme
allative		Sipullemme	Sipuillemme
essive		Sippunamme	Sippuinamme
translative		Sipuksemme	Sipuiksemme
abessive		Siputtamme	Sipuittamme
instructive		—	—
comitative		—	Sippuinemme

second-person plural possessor
		singular	plural
nominative		Sippunne	Sippunne
accusative	nom.	Sippunne	Sippunne
accusative	gen.	Sippunne	Sippunne
genitive		Sippunne	Sippujenne
partitive		Sippuanne	Sippujanne
inessive		Sipussanne	Sipuissanne
elative		Sipustanne	Sipuistanne
illative		Sippuunne	Sippuihinne
adessive		Sipullanne	Sipuillanne
ablative		Sipultanne	Sipuiltanne
allative		Sipullenne	Sipuillenne
essive		Sippunanne	Sippuinanne
translative		Sipuksenne	Sipuiksenne
abessive		Siputtanne	Sipuittanne
instructive		—	—
comitative		—	Sippuinenne

Sippu is the 7081^st (tied with 50 other surnames) most common surname in Finland, belonging to 93 individuals, according to February 2023 data from the Digital and Population Data Services Agency of Finland.