From Proto-Balto-Slavic *grī́ˀwāˀ, from Proto-Indo-European *gʷriHweh₂ (“neck, nape”), from the stem *gʷer- (“to swallow”), whence also Latvian dzert (“to drink”)). Cognates include Proto-Slavic *griva (“mane”) (Russian гри́ва (gríva, “mane”) (dialectal also “narrow bay,” “steep river bank”), Belarusian гры́ва (hrýva, “mane”) (dialectal also “dry place in a swamp”), Ukrainian гри́ва (hrýva, “mane”), Czech hříva, Polish grzywa), Sanskrit ग्रीवा (grīvā́, “neck”).
grīva f (4th declension)
- estuary, mouth (the place at which a river reaches the sea)
padziļināt upes grīvu ― to deepen the river's estuary
pie Daugavas grīvas bija pārāk daudz zvejnieku ― at the mouth of the Daugava there were too many fishermen