Green’s Dictionary of Slang

crony n.

[SE crone, a gnarled old woman + sfx -y]

1. a tough old hen, a boiling chicken.

[UK]B.E. Dict. Canting Crew.
[UK]New Canting Dict.

2. an ill-tempered or malicious old woman.

[UK]Hotten Dict. of Modern Sl. etc.
[UK]Hotten Sl. Dict.