Apparently from Latvian bārs (“orphaned, weak, vulnerable”). Suhonen lists a form bōriņ as a borrowing from Latvian bāriņš[1] a variant of bārenis used in some compounds, e.g., bāriņtiesa (“custody court, family court”). This entry is for the form listed in LĒL.
bōr
| singular (ikšlug) | plural (pǟgiņlug) | |
|---|---|---|
| nominative (nominatīv) | bōr | bōrõd |
| genitive (genitīv) | bōr | bōrõd |
| partitive (partitīv) | bōrõ | bōridi |
| dative (datīv) | bōrõn | bōrõdõn |
| instrumental (instrumentāl) | bōrõks | bōrõdõks |
| illative (illatīv) | bōrõ | bōriž |
| inessive (inesīv) | bōrsõ bōrs |
bōris |
| elative (elatīv) | bōrstõ bōrst |
bōrist |