Latin word dominus comes from Proto-Indo-European *demh₂-
| Dictionary entry | Language | Definition |
|---|---|---|
| *demh₂- | Proto-Indo-European (ine-pro) | to build 20, build, house |
| *domh₂nos | Proto-Indo-European (ine-pro) | |
| *domanos | Proto-Italic (itc-pro) | |
| dominus | Latin (lat) | A master, possessor, ruler, lord, proprietor. An owner of a residence; the master of its servants and slaves. Sir (greeting). The master of a feast, the entertainer, host. The master of a play or of public games, the employer of players or gladiators. |