Muse, v. i. [imp. & p. p. Mused (?); p. pr. & vb. n. Musing.] [F. muser
to loiter or trifle, orig., to stand with open mouth, fr. LL. musus,
morsus, muzzle, snout, fr. L. morsus a biting, bite, fr. mordere to
bite. See Morsel, and cf. Amuse, Muzzle, n.] 1. To think closely; to
study in silence; to meditate. "Thereon mused he." Chaucer.
He mused upon some dangerous plot.
Sir P. Sidney.
2. To be absent in mind; to be so occupied in study or contemplation as
not to observe passing scenes or things present; to be in a brown
study. Daniel.