muse 
(myz)
(myz)v. mused, mus·ing, mus·es
v.intr.
To be absorbed in one's thoughts; engage in thought.
v.tr.
To consider or say thoughtfully: mused that it might take longer to drive than walk.
n.
A state of reflection.
[Middle English musen, from Old French muser (possibly from mus, snout, from Medieval Latin mūsum) and or of Germanic origin.]
muser n.