In Pride and Prejudice, what's probity" &mdash

Probity is uprightness in one's dealings; integrity.

Mr. Bingley does not know the whole of [Wickham's] history, and is quite ignorant of the circumstances which have principally offended Mr. Darcy; but he will vouch for the good conduct, the probity, and honour of his friend, and is perfectly convinced that Mr. Wickham has deserved much less attention from Mr. Darcy than he has received . . .