Sources

Stronchrouby c. 1591 Pont

Sron a’ Chrùbaidh… Applies to that part of “Creag Sròn a Chrubaidh” “Nose or Ridge of the Bending”:  OS Namebooks OS1/33/1/154

Sròn Chrubaidh: Dwelly

“G. Strone, nose; and crubaidh, bending the nose of the bending” MacKay TGSI

G stron, nose, chrubie from crubadh, crouching, bent: Gunn, 160

Dwelly’s form is derived from MacKay, who is not reliable.