From Proto-Finnic *lakci. Cognates include Finnish laksi.
The original inflection was akin to yks (genitive lahen, partitive lahta), witnessed by the analogically formed lahti, but this inflection is not attested in Ingrian.
laksi
| Declension of laksi (type 5/lehti, no gradation) | ||
|---|---|---|
| singular | plural | |
| nominative | laksi | lakset |
| genitive | laksen | laksiin, laksiloin |
| partitive | laksia | laksija, laksiloja |
| illative | laksee | laksii, laksiloihe |
| inessive | laksees | laksiis, laksilois |
| elative | laksest | laksist, laksiloist |
| allative | lakselle | laksille, laksiloille |
| adessive | lakseel | laksiil, laksiloil |
| ablative | lakselt | laksilt, laksiloilt |
| translative | lakseks | laksiks, laksiloiks |
| essive | laksenna, lakseen | laksinna, laksiloinna, laksiin, laksiloin |
| exessive1) | laksent | laksint, laksiloint |
| 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. | ||
laksi (genitive lahen, partitive lahta)
From Proto-Samic *lëpsē.
laksi
| Even i-stem, ks-vss gradation | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Nominative | laksi | |||||||||||||||||||||
| Genitive | lavssi lavssẹ | |||||||||||||||||||||
| Singular | Plural | |||||||||||||||||||||
| Nominative | laksi | lavssit | ||||||||||||||||||||
| Accusative | lavssi | lavssiid | ||||||||||||||||||||
| Genitive | lavssi lavssẹ |
lavssiid | ||||||||||||||||||||
| Illative | laksái | lavssiide | ||||||||||||||||||||
| Locative | lavssis | lavssiin | ||||||||||||||||||||
| Comitative | lavssiin | lavssiiguin | ||||||||||||||||||||
| Essive | laksin | |||||||||||||||||||||
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