Lewis & Short

Paeānītis, ĭdis, f., and paeānītes, acc. em or en, m., a precious stone, now unknown, Plin. 37, 10, 66, § 180.
Form in -tes, Sol. 9, 22; Prisc. Perieg. 440; Isid. Orig. 14, 4, 13.