Finnish
Etymology
From the Scandinavian (Old Swedish) name Thronder.[1]
Pronunciation
- IPA(key): /ˈrontːi/, [ˈro̞n̪t̪ːi]
- Rhymes: -ontːi
- Syllabification(key): Ront‧ti
- Hyphenation(key): Ront‧ti
Proper noun
Rontti
- a Finnish surname
Declension
| Inflection of Rontti (Kotus type 5*C/risti, tt-t gradation)
|
| nominative
|
Rontti
|
Rontit
|
| genitive
|
Rontin
|
Ronttien
|
| partitive
|
Ronttia
|
Rontteja
|
| illative
|
Ronttiin
|
Rontteihin
|
|
|
singular
|
plural
|
| nominative
|
Rontti
|
Rontit
|
| accusative
|
nom.
|
Rontti
|
Rontit
|
| gen.
|
Rontin
|
| genitive
|
Rontin
|
Ronttien
|
| partitive
|
Ronttia
|
Rontteja
|
| inessive
|
Rontissa
|
Ronteissa
|
| elative
|
Rontista
|
Ronteista
|
| illative
|
Ronttiin
|
Rontteihin
|
| adessive
|
Rontilla
|
Ronteilla
|
| ablative
|
Rontilta
|
Ronteilta
|
| allative
|
Rontille
|
Ronteille
|
| essive
|
Ronttina
|
Rontteina
|
| translative
|
Rontiksi
|
Ronteiksi
|
| abessive
|
Rontitta
|
Ronteitta
|
| instructive
|
—
|
Rontein
|
| comitative
|
See the possessive forms below.
|
| first-person singular possessor
|
|
|
singular
|
plural
|
| nominative
|
Ronttini
|
Ronttini
|
| accusative
|
nom.
|
Ronttini
|
Ronttini
|
| gen.
|
Ronttini
|
| genitive
|
Ronttini
|
Ronttieni
|
| partitive
|
Ronttiani
|
Ronttejani
|
| inessive
|
Rontissani
|
Ronteissani
|
| elative
|
Rontistani
|
Ronteistani
|
| illative
|
Ronttiini
|
Rontteihini
|
| adessive
|
Rontillani
|
Ronteillani
|
| ablative
|
Rontiltani
|
Ronteiltani
|
| allative
|
Rontilleni
|
Ronteilleni
|
| essive
|
Ronttinani
|
Rontteinani
|
| translative
|
Rontikseni
|
Ronteikseni
|
| abessive
|
Rontittani
|
Ronteittani
|
| instructive
|
—
|
—
|
| comitative
|
— |
Rontteineni
|
| second-person singular possessor
|
|
|
singular
|
plural
|
| nominative
|
Ronttisi
|
Ronttisi
|
| accusative
|
nom.
|
Ronttisi
|
Ronttisi
|
| gen.
|
Ronttisi
|
| genitive
|
Ronttisi
|
Ronttiesi
|
| partitive
|
Ronttiasi
|
Ronttejasi
|
| inessive
|
Rontissasi
|
Ronteissasi
|
| elative
|
Rontistasi
|
Ronteistasi
|
| illative
|
Ronttiisi
|
Rontteihisi
|
| adessive
|
Rontillasi
|
Ronteillasi
|
| ablative
|
Rontiltasi
|
Ronteiltasi
|
| allative
|
Rontillesi
|
Ronteillesi
|
| essive
|
Ronttinasi
|
Rontteinasi
|
| translative
|
Rontiksesi
|
Ronteiksesi
|
| abessive
|
Rontittasi
|
Ronteittasi
|
| instructive
|
—
|
—
|
| comitative
|
— |
Rontteinesi
|
| first-person plural possessor
|
|
|
singular
|
plural
|
| nominative
|
Ronttimme
|
Ronttimme
|
| accusative
|
nom.
|
Ronttimme
|
Ronttimme
|
| gen.
|
Ronttimme
|
| genitive
|
Ronttimme
|
Ronttiemme
|
| partitive
|
Ronttiamme
|
Ronttejamme
|
| inessive
|
Rontissamme
|
Ronteissamme
|
| elative
|
Rontistamme
|
Ronteistamme
|
| illative
|
Ronttiimme
|
Rontteihimme
|
| adessive
|
Rontillamme
|
Ronteillamme
|
| ablative
|
Rontiltamme
|
Ronteiltamme
|
| allative
|
Rontillemme
|
Ronteillemme
|
| essive
|
Ronttinamme
|
Rontteinamme
|
| translative
|
Rontiksemme
|
Ronteiksemme
|
| abessive
|
Rontittamme
|
Ronteittamme
|
| instructive
|
—
|
—
|
| comitative
|
— |
Rontteinemme
|
| second-person plural possessor
|
|
|
singular
|
plural
|
| nominative
|
Ronttinne
|
Ronttinne
|
| accusative
|
nom.
|
Ronttinne
|
Ronttinne
|
| gen.
|
Ronttinne
|
| genitive
|
Ronttinne
|
Ronttienne
|
| partitive
|
Ronttianne
|
Ronttejanne
|
| inessive
|
Rontissanne
|
Ronteissanne
|
| elative
|
Rontistanne
|
Ronteistanne
|
| illative
|
Ronttiinne
|
Rontteihinne
|
| adessive
|
Rontillanne
|
Ronteillanne
|
| ablative
|
Rontiltanne
|
Ronteiltanne
|
| allative
|
Rontillenne
|
Ronteillenne
|
| essive
|
Ronttinanne
|
Rontteinanne
|
| translative
|
Rontiksenne
|
Ronteiksenne
|
| abessive
|
Rontittanne
|
Ronteittanne
|
| instructive
|
—
|
—
|
| comitative
|
— |
Rontteinenne
|
| third-person possessor
|
|
|
singular
|
plural
|
| nominative
|
Ronttinsa
|
Ronttinsa
|
| accusative
|
nom.
|
Ronttinsa
|
Ronttinsa
|
| gen.
|
Ronttinsa
|
| genitive
|
Ronttinsa
|
Ronttiensa
|
| partitive
|
Ronttiaan
Ronttiansa
|
Ronttejaan
Ronttejansa
|
| inessive
|
Rontissaan
Rontissansa
|
Ronteissaan
Ronteissansa
|
| elative
|
Rontistaan
Rontistansa
|
Ronteistaan
Ronteistansa
|
| illative
|
Ronttiinsa
|
Rontteihinsa
|
| adessive
|
Rontillaan
Rontillansa
|
Ronteillaan
Ronteillansa
|
| ablative
|
Rontiltaan
Rontiltansa
|
Ronteiltaan
Ronteiltansa
|
| allative
|
Rontilleen
Rontillensa
|
Ronteilleen
Ronteillensa
|
| essive
|
Ronttinaan
Ronttinansa
|
Rontteinaan
Rontteinansa
|
| translative
|
Rontikseen
Rontiksensa
|
Ronteikseen
Ronteiksensa
|
| abessive
|
Rontittaan
Rontittansa
|
Ronteittaan
Ronteittansa
|
| instructive
|
—
|
—
|
| comitative
|
— |
Rontteineen
Rontteinensa
|
|
Statistics
- Rontti is the 2970th (tied with 12 other surnames) most common surname in Finland, belonging to 263 individuals, according to August 2025 data from the Digital and Population Data Services Agency of Finland.
References
- ^ Mikkonen, Pirjo; Paikkala, Sirkka (2000), Sukunimet, Helsinki: Otava, →ISBN