A tenon is a projecting peg of stone, more commonly seen on early medieval high crosses where it was used to slot a separate capstone or decorative finial into place. Here, the detail survives without obvious explanation, giving the cross an unfinished or repurposed quality that invites closer attention.

The cross itself is a modest but well-proportioned object, cut from granite and standing 1.3 metres high. Its arms span 0.43 metres across, and the shaft measures 0.3 metres wide but only 0.11 metres thick, giving it a noticeably flat, almost planar profile. The upper transom is narrower than the shaft beneath it, at 0.16 metres wide and 0.06 metres thick, which reverses the proportion a viewer might expect. Whether this reflects an early design tradition, a later recutting, or simply local workshop practice is not recorded, and the cross carries no inscription or figurative carving to offer further clues.