A UK radio advertisement for men’s suits uses the word ‘portly’, not a commonly used word these days.

Portly ~ adjective: 1. slightly overweight
2. having an air of grandeur ( archaic )

15th century. Formed from port in the sense of “bearing, manner.”

The second meaning is new to me but perhaps explains why the word seems to be applied exclusively to men, since in the 15th Century I guess women were not considered capable of having an air of grandeur!