πικραίνω pikraínō

Greek · Strong's G4087 · used 4 times in 4 verses

Meaning

to embitter (literally or figuratively)

In the King James Version: be (make) bitter

Derivation: from G4089 (πικρός);

Colossians 3:19 Husbands, love your wives and do not be harsh with them.
Revelation 8:11 The name of the star is Wormwood. A third of the waters turned bitter like wormwood oil, and many people died from the bitter waters.
Revelation 10:9 And I went to the angel and said, “Give me the small scroll.” “Take it and eat it,” he said. “It will make your stomach bitter, but in your mouth it will be as sweet as honey.”
Revelation 10:10 So I took the small scroll from the angel’s hand and ate it, and it was as sweet as honey in my mouth. But when I had eaten it, my stomach turned bitter.