LSJ
to be embittered, Nic.Dam. p. 34 D. ; πρὸς τὴν ἀπειλήν D.H. 19.5 ; πρός τινα J. AJ 5.7.1 ; ἐπί τινι D.H. 4.38, Ath. 8.351b, etc. =ἐκπικρόομαι II, Hp. Mul. 2.133.
Liddell-Scott-Jones, Greek-English Lexicon (9th ed., 1940)
TBESG
to embitter greatly (MT)
Translators Brief lexicon of Extended Strongs for Greek based on Abbot-Smith, A Manual Greek Lexicon of the New Testament (1922) (=AS), with corrections and adapted by Tyndale Scholars