Rosenithon () is a hamlet east of St Keverne in west Cornwall, England.Ordnance Survey One-inch Map of Great Britain; Truro and Falmouth, sheet 190. 1961
The name Rosenithon comes from the Cornish language Ros an Eythin, which means 'the hill-spur of gorse'.Akademi Kernewek place names - Ros an Eythin References