πικρία G4088
pikría · pik-ree'-ah · Noun Feminine
from πικρός; acridity (especially poison), literally or figuratively:--bitterness.
4 Occurrences in the King James Bible
Acts 8:23For I perceive that thou art in the gall of bitterness, and in the bond of iniquity.
Romans 3:14Whose mouth is full of cursing and bitterness:
Ephesians 4:31Let all bitterness, and wrath, and anger, and clamour, and evil speaking, be put away from you, with all malice:
Hebrews 12:15Looking diligently lest any man fail of the grace of God; lest any root of bitterness springing up trouble you, and thereby many be defiled;