From Wiktionary, the free dictionary
First recorded as a given name of Latvians in 1729. Short form of Margrieta (“Margaret”). Cognate to German Greta.
Grieta f
- a female given name
- Klāvs Siliņš: Latviešu personvārdu vārdnīca. Riga "Zinātne" 1990, →ISBN
- [1] Population Register of Latvia: Grieta was the only given name of 175 persons in Latvia on May 21st 2010.