Amara's Thesaurus 1.2.110

1.2.110

(2.1.19) triṣvāgoṣṭhānnaḍaprāye naḍvānnaḍvala ityapi

In three genders: up to an animal pen (goṣṭha); for [a place] abounding in reeds, naḍvān and naḍvala;