noun

1. a singing or playing of music outdoors at night, esp. by a lover under the window of his sweetheart
2. a piece of music suitable for this
3. an instrumental composition somewhat like a suite

Etymology: Fr sérénade < It serenata < sereno, serene, open air < L serenus, clear, serene; meaning infl. by assoc. with L sera, evening < serus, late

transitive verb, intransitive verb serenaded -·nad′·ed, serenading -·nad′·ing