The Roman Map of Britain Vercovicio Housesteads, Thorngrafton, Northumberland

Velurtion var. reading Velurcion (R&C 149) next
Tribunus cohortis primae Tungrorum, Borcouicio vars. Borcouitio, Boreouito (ND xl₄₀)
GER(mani) CIVES TUIHANTI CUNEI FRISIORUM VER(covicianorum) (RIB 1594 altar)

Conventional wisdom considers the name to be based on *uerco- *uergo- 'work'.

If uer can be taken as 'over', there is Cowey Sike, a stream below it.

Housesteads NY7968

HOUSESTEADS FORT, SECTION OF WALL & VALLUM BETWEEN THE FIELD BOUNDARY WEST OF MILECASTLE 36 & THE FIELD BOUNDARY WEST OF TURRET 37A IN WALL MILES 36 & 37
NATIONAL MONUMENT NO: 26059