That wanders or roams about at night; = "noctivagous".
Origin
Early 17th century; earliest use found in Thomas Adams (1583–1652), Church of England clergyman. From post-classical Latin noctivagant-, noctivagans, present participle of noctivagare.
Definition of noctivagant in US English:
noctivagant
adjectivenɒkˈtɪvəɡ(ə)nt
That wanders or roams about at night; = "noctivagous".
Origin
Early 17th century; earliest use found in Thomas Adams (1583–1652), Church of England clergyman. From post-classical Latin noctivagant-, noctivagans, present participle of noctivagare.