Slew was about 1½ kilometres to the south east of Hele, on Oxenpark Lane (an ancient ridgeway), nearly opposite the track to Trayne.  It is not a settlement now, but in 1279 it was the home of William de la Slo. It is named on the Ordnance Survey map of 1809, marked in a different pattern to the surrounding fields, possibly representing boggy ground. It seems to have been abandoned by then since no dwellings are shown. Slew is from Old English slōh, meaning a 'slough' or 'mire'.

Slew is so-called on the OS map of 1809 where it is shown in the centre of a defined area (of boggy ground?)

Slew was probably the home of William de la Slo (1279 Ass). Slew is from OE slōh, 'slough, mire'. (Gover et al 1932 p28)

Slough is from OE slōh meaning "a piece of soft, miry or muddy ground; especially a place or hole in a road or way filled with wet mud or mire and impassable by heavy vehicles, horses, etc." (SOED 1987 Vol 2 p 2022)