Early 17th century (in an earlier sense). From French réveille-matin alarm clock from réveille-, stem of réveiller + matin in the morning, use as adverb of matin morning.
Definition of reveille-matin in US English:
reveille-matin
nounrɪˈveɪmatã
An alarm mechanism in a clock; an alarm clock.
Origin
Early 17th century (in an earlier sense). From French réveille-matin alarm clock from réveille-, stem of réveiller + matin in the morning, use as adverb of matin morning.