King James Bible
King James Version (KJV)

From ya'aph; fatigue (adverb, utterly exhausted):
see HEBREW ya'aph
H3288. yeaph
יְעָף noun [masculine] weariness, faintness (Aramaism, according to LagBN 175); — בִּיעָף מֻעָף weary with weariness, utterly weary Daniel 9:21 (from winged flight, said of Gabriel).
II. יעף (√ of following; compare Arabic ascend a mountain, hill).