מָאַר‎ (mâʼar|maw-ar'|verb|excite hostility)
[Heb] מָאַר‎ ETCBC: מאר‎ (verb|hurt) OSHL: m.ai.aa TWOT: 1141 GK: H4421 Greek: πικρία
Derivation: a primitive root;
Strong's: to be bitter or (causatively) to embitter, i.e. be painful
KJV: fretting, picking.