(1):

(n.) An offer made; something proposed for acceptance by another; a tender; as, proffers of peace or friendship.

(2):

(v. t.) To offer for acceptance; to propose to give; to make a tender of; as, to proffer a gift; to proffer services; to proffer friendship.

(3):

(v. t.) To essay or attempt of one's own accord; to undertake, or propose to undertake.

(4):

(n.) Essay; attempt.