English word ominous comes from Latin os, Latin -men (Forms neuter nouns of the third declension.)
| Dictionary entry | Language | Definition |
|---|---|---|
| os | Latin (lat) | (poetic) speech. Face, appearance, head. Mouth. Opening, entrance Bone. Framework of discourse. Heartwood. The hard or innermost part of trees or fruits. |
| -men | Latin (lat) | Forms neuter nouns of the third declension. |
| omen | Latin (lat) | An omen. |
| ominosus | Latin (lat) | Foreboding, ominous, portentous. |
| ominous | English (en) | Of or pertaining to an omen or to omens; being or exhibiting an omen; significant.. Specifically, giving indication of a coming ill; being an evil omen. |