Word Summary
seiō: to shake
Original Word: σείω
Transliteration: seiō
Phonetic Spelling: (si'-o)
Part of Speech: Verb
Short Definition: to shake
Meaning: to shake
Strong's Concordance
move, quake, shake.

Apparently a primary verb; to rock (vibrate, properly, sideways or to and fro), i.e. (generally) to agitate (in any direction; cause to tremble); figuratively, to throw into a tremor (of fear or concern) -- move, quake, shake.

Thayer's Greek Lexicon
STRONGS NT 4579: σείω

σείω; future σείσω (Hebrews 12:26 L T Tr WH); passive, present participle σειόμενος; 1 aorist ἐσείσθην; from Homer down; the Sept. chiefly for רָעַשׁ; to shake, agitate, cause to tremble: Revelation 6:13; τήν γῆν, Hebrews 12:26 after Haggai 2:6; ἐσείσθη γῆ, Matthew 27:51 (Judges 5:4; 2 Samuel 22:8); σεισθῆναι ἀπό φοβοῦ, of men, to be thrown into a tremor, to quake for fear, Matthew 28:4; metaphorically, to agitate the mind: ἐσείσθη πόλις (R. V. was stirred) i. e. its inhabitants Matthew 21:10. (Compare: ἀνασείω, διασείω, κατασείω.)