The French adjective meaning "scottish" is écossais(masculine) or écossaise (feminine).
Not sure exactly what you mean, however, "Stuart" is the French version of the Scottish name "Stewart". Go to Mary Stewart (Mary, Queen of Scots) websites to find out more.
"Scottish" translates as "Schottisch"
The Scottish translation for the word 'devil' is 'de'il'.
If you mean Scottish Gaelic, there isn't one.
Scottish-French
an seabhag
màthair
naomh
Teagamhaiche (?)
Around.
Not sure of the "translation" but it means WHITE HAWK
The Scottish Gaelic version of Peter is Peadar(patter).