(Latin: musum, "muzzle, snout"; Old French muser "to meditate, to ponder", perhaps literally "to go around with one's nose in the air" from muse "muzzle, snout")

(Latin: to chew over again, to chew the cud; to muse or to meditate; that is, to think about something in a deep and serious or dreamy and abstracted way or to think about something carefully, calmly, seriously, and for a long time)