רָעַם (râʻamraw-am'verbthunder)
[Heb] רָעַם ETCBC: רעם‎ (verb|be disconcerted), רעם‎ (verb|thunder) OSHL: t.do.ac TWOT: 2189 GK: H8306, H8307 Greek: ἀθυμέω, βοάω, δακρύω, κραυγή, σαλεύω
Derivation: a primitive root;
Strong's: to tumble, i.e. be violently agitated; specifically, to crash (of thunder); figuratively, to irritate (with anger)
KJV: make to fret, roar, thunder, trouble.