dormeuse
noun
dor·meuse
(ˈ)dȯ(ə)¦mə̄z
plural -s
British
: a private traveling carriage having a long forward boot carrying a mattress for extending the seat into a bed and providing leg room for a passenger reclining at full length
Word History
Etymology
French, literally, female sleeper, feminine of dormeur, sleeper, from Middle French, from dormir + -eur -or