happ- (“sour, acidic”) + -o. Modern meaning "acid" coined by Finnish folklorist and linguist Daniel Europaeus in 1853, originally used more generally of sour things or of leaveners.
happo
| Inflection of happo (Kotus type 1*B/valo, pp-p gradation) | |||
|---|---|---|---|
| nominative | happo | hapot | |
| genitive | hapon | happojen | |
| partitive | happoa | happoja | |
| illative | happoon | happoihin | |
| singular | plural | ||
| nominative | happo | hapot | |
| accusative | nom. | happo | hapot |
| gen. | hapon | ||
| genitive | hapon | happojen | |
| partitive | happoa | happoja | |
| inessive | hapossa | hapoissa | |
| elative | haposta | hapoista | |
| illative | happoon | happoihin | |
| adessive | hapolla | hapoilla | |
| ablative | hapolta | hapoilta | |
| allative | hapolle | hapoille | |
| essive | happona | happoina | |
| translative | hapoksi | hapoiksi | |
| abessive | hapotta | hapoitta | |
| instructive | — | hapoin | |
| comitative | See the possessive forms below. | ||
Borrowed from Finnish happo, equivalent to happ- (“sour”) + -o.
happo
| Declension of happo (type 4/koivu, pp-p gradation) | ||
|---|---|---|
| singular | plural | |
| nominative | happo | hapot |
| genitive | hapon | happoin, happoloin |
| partitive | happoa | happoja, happoloja |
| illative | happoo | happoi, happoloihe |
| inessive | hapos | hapois, happolois |
| elative | hapost | hapoist, happoloist |
| allative | hapolle | hapoille, happoloille |
| adessive | hapol | hapoil, happoloil |
| ablative | hapolt | hapoilt, happoloilt |
| translative | hapoks | hapoiks, happoloiks |
| essive | happonna, happoon | happoinna, happoloinna, happoin, happoloin |
| exessive1) | happont | happoint, happoloint |
| 1) obsolete *) the accusative corresponds with either the genitive (sg) or nominative (pl) **) the comitative is formed by adding the suffix -ka? or -kä? to the genitive. | ||
From Proto-Finnic *hap'oin. This etymology is incomplete. You can help Wiktionary by elaborating on the origins of this term. explain retention of initial h-, which is not regular
happo
| Declension of happo (type XIII/seeme, pp-p gradation, gemination) | ||
|---|---|---|
| singular | plural | |
| nominative | happo | happomõd |
| genitive | happomõ | happomijõ, happomii |
| partitive | hapottõ | happomiitõ, happomii |
| illative | happoma, happomasõ | happomiisõ |
| inessive | happomõz | happomiiz |
| elative | happomõssõ | happomiissõ |
| allative | happomõlõ | happomiilõ |
| adessive | happomõllõ | happomiillõ |
| ablative | happomõltõ | happomiiltõ |
| translative | happomõssi | happomiissi |
| *) the accusative corresponds with either the genitive (sg) or nominative (pl) **) the terminative is formed by adding the suffix -ssaa to the short illative (sg) or the genitive. ***) the comitative is formed by adding the suffix -ka to the genitive. | ||