You know
How narrow our demeans are.
Massinger.
De*mean"ance (?), n. Demeanor. [Obs.] Skelton.
De*mean"or (?), n. [Written also demeanour.] [For demeanure, fr. demean. See Demean, v. t.] 1. Management; treatment; conduct. [Obs.]
God commits the managing so great a trust . . . wholly to the demeanor of every grown man.
Milton.