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Strong’s Greek

G4087 — pikraino

The entry below is Strong’s own definition (1890, public domain), and every verse where the word occurs.

πικραίνω

pikraino — pronounced pik-rah'-ee-no

from 4089; to embitter (literally or figuratively):--be (make) bitter. see GREEK for 4089

6 occurrences in the KJV.

Colossians 3:19

Husbands, love your wives, and be not bitter against them.

Colossians 3:19

Husbands, love your wives, and be not bitter against them.

Revelation 8:11

And the name of the star is called Wormwood: and the third part of the waters became wormwood; and many men died of the waters, because they were made bitter.

Revelation 10:9

And I went unto the angel, and said unto him, Give me the little book. And he said unto me, Take it, and eat it up; and it shall make thy belly bitter, but it shall be in thy mouth sweet as honey.

Revelation 10:9

And I went unto the angel, and said unto him, Give me the little book. And he said unto me, Take it, and eat it up; and it shall make thy belly bitter, but it shall be in thy mouth sweet as honey.

Revelation 10:10

And I took the little book out of the angel’s hand, and ate it up; and it was in my mouth sweet as honey: and as soon as I had eaten it, my belly was bitter.