Petze

Etymology 1
, see there for more. Since the end of the 19th century.

Noun

 * 1)  tattler, tattletale of either sex

Etymology 2
First attested 1520, of origin and relation (Kluge compares 🇨🇬, 🇨🇬). Possibly.

Noun

 * 1)  she-dog; bitch female dog
 * 2)  she-bear female bear
 * 1)  she-bear female bear