שָׂמַח
From LSJ
Δύο γὰρ, ἐπιστήμη τε καὶ δόξα, ὧν τὸ μὲν ἐπίστασθαι ποιέει, τὸ δὲ ἀγνοεῖν → Two different things are science and belief: the one brings knowledge, the other ignorance
English (Strong)
a primitive root; probably to brighten up, i.e. (figuratively) be (causatively, make) blithe or gleesome: cheer up, be (make) glad, (have, make) joy(-ful), be (make) merry, (cause to, make to) rejoice, X very.