It amazed him that he'd become one of the most sought-after bachelors in England, since he was hardly a fit mate for a decent woman.

Everything goes wrong when a man tries to find a "fit mate."

A cowardly girl is no fit mate for me.

Caesar was a god, therefore a fit mate for me.

Are you then a fit mate for an uneducated shepherd-boy, whose only inheritance is his father's tarnished name?

A fine, strapping girl, a fit mate for a man like himself!

The day bartender was a fit mate to the one who owned the bar and ran it at night.

For a male zebra finch, being a pretty boy means you're the fittest mate.

However, its most likely use is to impress females, as an indication of the fittest mate.

There was no fit mate in that village for Joan of Arc.