Noctivagant

[…] I therefore think, Sarah, that the incommensurability of the crime with the effect, completely warrants the supersaliency of this noctivagant delinquent.

"Over the city, the suburb, the slum / He rambled from pillar to post, / And backward and forward, observant, though dumb, / As a fleetly noctivagant ghost."

Unhappily, we lost the big fellow, Smirke, to noctivagant predators some days back […]

"Not merely nocturnal but noctivagant, a nightwalker, a prowler, a nomad of the midnight streets, attempting to abolish the distinction between the light that comes from outside and the sort that shines within."