H3415 יָרַע (yaw-rah')

KJV renderings: be grevious (only Isaiah 15:4; the rest belong to H7489 (רָעַע)).
Strong's definition: properly, to be broken up (with any violent action) i.e. (figuratively) to fear
Derivation: a primitive root;

From James Strong's public-domain dictionaries (H), JSON edition by OpenScriptures (CC-BY-SA). Every dotted-underline word in the text links here.