(onomatopoeia). Compare Norwegian jo.
jói m (genitive singular jóa, plural jóar)
| m1 | singular | plural | ||
|---|---|---|---|---|
| indefinite | definite | indefinite | definite | |
| nominative | jói | jóin | jóar | jóarnir |
| accusative | jóa | jóan | jóar | jóarnar |
| dative | jóa | jóanum | jóum | jóunum |
| genitive | jóa | jóans | jóa | jóanna |