FromProto-Germanic*askaz, whence also Old Englishæsc, Old High Germanask.
For the semantic shift from "tree" to "container" compare Latinbuxus,buxis (whence Englishbox,boxwood).
askr m (genitiveasks,pluralaskar)
| masculine | singular | plural | ||
|---|---|---|---|---|
| indefinite | definite | indefinite | definite | |
| nominative | askr | askrinn | askar | askarnir |
| accusative | ask | askinn | aska | askana |
| dative | aski | askinum | ǫskum | ǫskunum |
| genitive | asks | asksins | aska | askanna |