warm and cordial towards another person / Energetic, active or eager. / Cheerful, vivacious. / Exhibiting strength; firm / Promoting strength; nourishing.

(obsolete or humorous nautical) a term of familiar address and fellowship among sailors.

plural of hearty

The characteristic of being hearty; fillingness; wholesomeness.

plural of heartiness

(idiomatic, slang) To engage in unrestrained merriment.

(US, simile) Extremely healthy.

One who parties heavily.

(idiomatic) In a state of robust good health. / (idiomatic, nutrition) Conducive to robust good health.

plural of party-hearty