|Sources||See Taylor and Márkus, Place-names of Fife, i, 359-360 for analysis and early forms.|
This is the 'Ros of Fife'. Taylor suggests the initial F- was reduced in the consonant
cluster -sf-, but in any case Fhìobh would be lenited now in the genitive.
Kingdom of Fife, ruiachk fīv [i.e. Rioghachd Fìobh]: Diack, Inscriptions, 197.
Forms such as Ros Suidhe, and Ros Saidhe, are seen in circulation, but these come from a folk etymology
originating from Duilleagan a Leabhar cunntas ar Beatha anns a' Ghadhalltachd bho 1848 gu 1861, 1868, 15.