Gender: Feminine
Origin: Lithuanian
Meaning: “plain; complain; console; comfort.”
(GWOH-stey)

The name is from the Lithuanian word guostis meaning “complain; plain; console; comfort.”

It is also the name of a river in Lithuania.

The designated name-day is August 14.

Sources

1. http://www.behindthename.com/namedays/lists/8.php
2. http://day.lt/vardai/Guost%EB
3. http://www.lingvozone.com/main.jsp?action=translation&do=dictionary&language_id_from=52&language_id_to=23&word=guost&t.x=49&t.y=12