The Collaborative International Dictionary of English v.0.48:
Countenance \Coun"te*nance\ (koun"t?-nans), v. t. [imp. & p. p.
Countenanced (-nanst); p. pr. & vb. n. Countenancing.]
1. To encourage; to favor; to approve; to aid; to abet.
This conceit, though countenanced by learned men, is
not made out either by experience or reason. --Sir
Error supports custom, custom countenances error.
2. To make a show of; to pretend. [Obs.]
Which to these ladies love did countenance.