• 奴隷どれい — slave; enslaved person
• 隷属れいぞく — subjugation; subordination
• 隷従れいじゅう — subservience; forced obedience
• 隷書れいしょ — clerical script (ancient writing style)

The right-side radical 隶れい carries the sense of being bound or assigned to serve. Combined with the left structure, 隷 expresses a state of being under someone’s control — the core idea behind servant, subordinate, or slave.