Collydean LSL S NO263028 1 373 155m SEF
Colydean 1811 RHP3640
Coaley Dean 1828 SGF
Collydean 1856 OS 6 inch 1st edn
? Sc coaly + Sc den
Probably ‘den or small, deep valley where coal is found’. The variation between the open and closed /o/ is found in the Sc colly buckie or coalie-back for ‘piggieback’, both of which literally refer to carrying coal (CSD). There is another Collydean just north of Dundee ANG.
This place-name appeared in printed volume 2