Webster's Revised Unabridged Dictionary · 1913

Passant

Passant , adjective

[French, present participle of passer. See Pass, v. i.]

1.
Passing from one to another; in circulation; current. [Obsolete]
Many opinions are passant. — Sir T. Browne
2.
Cursory, careless. [Obsolete]
On a passant rewiew of what I wrote to the bishop. — Sir P. Pett
3.
Surpassing; excelling. [Obsolete] — Chaucer
4.
(Heraldry) Walking; -- said of any animal on an escutcheon, which is represented as walking with the dexter paw raised.