πικρία pikría

Meaning

acridity (especially poison), literally or figuratively

In the King James Version: bitterness

Derivation: from G4089 (πικρός);

Where it is used

• Acts 8:23 For I see that you are poisoned by bitterness and captive to iniquity.”
• Romans 3:14 “Their mouths are full of cursing and bitterness.”
• Ephesians 4:31 Get rid of all bitterness, rage and anger, outcry and slander, along with every form of malice.
• Hebrews 12:15 See to it that no one falls short of the grace of God, and that no root of bitterness springs up to cause trouble and defile many.