Acts 7:6δουλώσουσιν
God told him that his descendants would be foreigners in a strange land, and that they would be enslaved and mistreated four hundred years.
Romans 6:18ἐδουλώθητε
You have been set free from sin and have become slaves to righteousness.
1 Corinthians 7:15δεδούλωται
But if the unbeliever leaves, let him go. The believing brother or sister is not bound in such cases. God has called you to live in peace.
Galatians 4:3δεδουλωμένοι
So also, when we were children, we were enslaved under the basic principles of the world.
Titus 2:3δεδουλωμένας
Older women, likewise, are to be reverent in their behavior, not slanderers or addicted to much wine, but teachers of good.
2 Peter 2:19δεδούλωται
They promise them freedom, while they themselves are slaves to depravity. For a man is a slave to whatever has mastered him.

Abbott-Smith

δουλόω, -ῶ
(δοῦλος), [in LXX for עָבַד ;]
to enslave, bring into bondage: Act.7:6 (LXX), 2Pe.2:19; metaphorically, 1Co.9:19; pass., before ἐν, 1Co.7:15; τ. θεῷ, Rom.6:22; τ. δικαιοσύνῃ, Rom.6:18; οἴνῳ, Tit.2:3; ὑπὸ τὰ στοιχεῖα τ. κόσμου, Gal.4:3 (Cremer, 217).†
(AS)

Sources: Abbott-Smith’s Manual Greek Lexicon of the New Testament (1922, public domain) and glosses from STEPBible TBESG (CC BY 4.0); STEPBible TAGNT (Greek New Testament, CC BY 4.0); the Berean Standard Bible (public domain). Reformatted by Word Study, wording unchanged. All sources and licenses.