chay (Hebrew #2416)
alive; hence, raw (flesh); fresh (plant, water, year), strong; also (as noun, especially in the feminine singular and masculine plural) life (or living thing), whether literally or figuratively
KJV usage: + age, alive, appetite, (wild) beast, company, congregation, life(-time), live(-ly), living (creature, thing), maintenance, + merry, multitude, + (be) old, quick, raw, running, springing, troop.
Pronounce: khah'-ee
samach (Hebrew #8055)
probably to brighten up, i.e. (figuratively) be (causatively, make) blithe or gleesome
KJV usage: cheer up, be (make) glad, (have, make) joy(-ful), be (make) merry, (cause to, make to) rejoice, X very.
Pronounce: saw-makh'
Origin: a primitive root