Dictionary entry

Mien

Webster's Dictionary 1913

Mien (mēn), n. [F. mine; perh. from sane source as mener to lead; cf. E. demean, menace, mine, n.] Aspect; air; manner; demeanor; carriage; bearing.

Vice is a monster of so frightful mien,

As, to be hated, needs but to be seen. Pope.