(1):

(v. i.) To chew the cud; to chew again what has been slightly chewed and swallowed.

(2):

(v. t.) To meditate or ponder over; to muse on.

(3):

(v. i.) To think again and again; to muse; to meditate; to ponder; to reflect.

(4):

(v. t.) To chew over again.

(5):

(a.) Alt. of Ruminated