past mistress
noun
: a woman who is proficient or thorough in some particular respect : adept
a past mistress of storytelling 
Newsweek
Newsweek
Word History
Etymology
past (as in past master) + mistress
- solitary
- solitary ant
- solitary bee
- solitary confinement
- solitary gland
- solitary phase
- solitary sandpiper
- solitary snipe
- solitary vireo
- solitary wasp
- solitary wave
- soliterraneous
- soliton
- solitons
- solitude
- solitudes
- solitudinarian
- solitudinarians
- solivagant
- solivagants
- sollar
- sollars
- soller
- solleret
- sollerets