French word couloir comes from French couler, French -oir
| Dictionary entry | Language | Definition |
|---|---|---|
| couler | French (fr) | (intransitive) to flow, to run; to slip, to skid. (intransitive) to go bankrupt. (intransitive) to shed (i.e. shed blood). (intransitive) to sink. (transitive) to cast (metal); to pour (liquid). (transitive) to sink. (transitive, Quebec) to fail, flunk (a course, test, etc.). |
| -oir | French (fr) | A suffix forming infinitives of many verbs. A suffix used on verbs to form masculine words for objects or tools used to do something.. A suffix used on verbs to form masculine words for places where something is done. |
| couloir | French (fr) | Aisle (in an airliner). Corridor. |