(1):

(n.) Comrade; boon companion; good fellow; - a term of familiar address and fellowship among sailors.

(2):

(superl.) Promoting strength; nourishing; rich; abundant; as, hearty food; a hearty meal.

(3):

(superl.) Pertaining to, or proceeding from, the heart; warm; cordial; bold; zealous; sincere; willing; also, energetic; active; eager; as, a hearty welcome; hearty in supporting the government.

(4):

(superl.) Exhibiting strength; sound; healthy; firm; not weak; as, a hearty timber.