Why is Hackney Wick called Hackney Wick?

Hackney. The name is not recorded until the 12th century, but Hackney was undoubtedly settled much earlier, as evinced from the 'tun' of Dalston and Clapton and the 'wic' of Hackney Wick. A leading theory suggests origins with Haca's ey, an 'ey' being an area of raised ground in marshland.

Why are places called Wick?

The name is derived from the Anglo-Saxon suffix -wīc, signifying "a dwelling or fortified place". Such settlements were usually coastal and many have left material traces found during excavation. ... As well as -wich, -wīc was the origin of the endings -wyck and -wick, as, for example, in Papplewick, Nottinghamshire.