Croft (A.S.), 'an enclosed field;' as Crofton, Thornycroft.
Dagh (Turk.), 'mountain;' as Karadagh.
Dal (Scand.), Thal (Ger.), Dail and Dol (Celt.), 'a dale,' 'a field;' as Liddesdale, Rydal, Kendal, Arundel, Rheinthal; (in Celtic names prefixed) Dalry, Dalkeith, Dolgelly. [See Dale in Dict.]
Dar (Ar.), 'a dwelling,' 'district;' as Darfur, Diarbekr.
Den or Dean (Teut.), 'a deep wooded valley;' as Tenterden, Southdean, Hazeldean, Denholm.
Dorf. See Thorpe.
Dour (Celt.), 'water;' as the Dour, Adour, Douro, Dore, Thur, Doro, Adder, Derwent, Darwin, Darent, Dart, Dorchester, Dordogne.
Drum and Drom (Celt.), 'a backbone,' 'a ridge;' as Dromore, Drummond, Aughrim, Leitrim.
Du (Celt.), 'black;' as Douglas; the rivers Dulas, Doulas; Dublin ('dark pool').
Dum, Dun (Gael.), Dinas, Din (W.), 'a hill-fortress;' as Dunmore, Dunblane, Dunkeld, Dumbarton, Dumfries, Dunstable, Dunmow, Downpatrick, Donegal, Maldon, Verdun, Leyden, Dinas-fawr, Dinan, Denbigh. [See Down, a hill, in Dict.]