do-e-ra appears on inscriptions at Knossos and Pylos.
Definitions
Palaeolexicon: DO-E-RA female slave
Wiktionary slave (female)
Chadwick & Ventris: maid-servant, bondwoman slave
Variants
Masculine form: do-e-ro
References
Chadwick, John and Michael Ventris 1973 Documents in Mycenaean Greek p. 540