Airio

Finnish

Air- +‎ -io, from the same root as Airikka. Created in the early 20th century.^[1]

Airio

Inflection of Airio (Kotus type 3/valtio, no gradation)
nominative		Airio	Airiot
genitive		Airion	Airioiden Airioitten
partitive		Airiota	Airioita
illative		Airioon	Airioihin
		singular	plural
nominative		Airio	Airiot
accusative	nom.	Airio	Airiot
accusative	gen.	Airion	Airiot
genitive		Airion	Airioiden Airioitten
partitive		Airiota	Airioita
inessive		Airiossa	Airioissa
elative		Airiosta	Airioista
illative		Airioon	Airioihin
adessive		Airiolla	Airioilla
ablative		Airiolta	Airioilta
allative		Airiolle	Airioille
essive		Airiona	Airioina
translative		Airioksi	Airioiksi
abessive		Airiotta	Airioitta
instructive		—	Airioin
comitative		See the possessive forms below.

Possessive forms of Airio (Kotus type 3/valtio, no gradation)

first-person singular possessor
		singular	plural
nominative		Airioni	Airioni
accusative	nom.	Airioni	Airioni
accusative	gen.	Airioni	Airioni
genitive		Airioni	Airioideni Airioitteni
partitive		Airiotani	Airioitani
inessive		Airiossani	Airioissani
elative		Airiostani	Airioistani
illative		Airiooni	Airioihini
adessive		Airiollani	Airioillani
ablative		Airioltani	Airioiltani
allative		Airiolleni	Airioilleni
essive		Airionani	Airioinani
translative		Airiokseni	Airioikseni
abessive		Airiottani	Airioittani
instructive		—	—
comitative		—	Airioineni

second-person singular possessor
		singular	plural
nominative		Airiosi	Airiosi
accusative	nom.	Airiosi	Airiosi
accusative	gen.	Airiosi	Airiosi
genitive		Airiosi	Airioidesi Airioittesi
partitive		Airiotasi	Airioitasi
inessive		Airiossasi	Airioissasi
elative		Airiostasi	Airioistasi
illative		Airioosi	Airioihisi
adessive		Airiollasi	Airioillasi
ablative		Airioltasi	Airioiltasi
allative		Airiollesi	Airioillesi
essive		Airionasi	Airioinasi
translative		Airioksesi	Airioiksesi
abessive		Airiottasi	Airioittasi
instructive		—	—
comitative		—	Airioinesi

first-person plural possessor
		singular	plural
nominative		Airiomme	Airiomme
accusative	nom.	Airiomme	Airiomme
accusative	gen.	Airiomme	Airiomme
genitive		Airiomme	Airioidemme Airioittemme
partitive		Airiotamme	Airioitamme
inessive		Airiossamme	Airioissamme
elative		Airiostamme	Airioistamme
illative		Airioomme	Airioihimme
adessive		Airiollamme	Airioillamme
ablative		Airioltamme	Airioiltamme
allative		Airiollemme	Airioillemme
essive		Airionamme	Airioinamme
translative		Airioksemme	Airioiksemme
abessive		Airiottamme	Airioittamme
instructive		—	—
comitative		—	Airioinemme

second-person plural possessor
		singular	plural
nominative		Airionne	Airionne
accusative	nom.	Airionne	Airionne
accusative	gen.	Airionne	Airionne
genitive		Airionne	Airioidenne Airioittenne
partitive		Airiotanne	Airioitanne
inessive		Airiossanne	Airioissanne
elative		Airiostanne	Airioistanne
illative		Airioonne	Airioihinne
adessive		Airiollanne	Airioillanne
ablative		Airioltanne	Airioiltanne
allative		Airiollenne	Airioillenne
essive		Airionanne	Airioinanne
translative		Airioksenne	Airioiksenne
abessive		Airiottanne	Airioittanne
instructive		—	—
comitative		—	Airioinenne

Airio is the 2830^th (tied with 9 other surnames) most common surname in Finland, belonging to 279 individuals, according to February 2023 data from the Digital and Population Data Services Agency of Finland.