The name ''Dublin'' derives from the Irish word ''Dubhlinn'', early Classical Irish /, from  (, , ) meaning "black, dark", and  () "pool", referring to a dark tidal pool. This tidal pool was located where the River Poddle entered the Liffey, on the site of the castle gardens at the rear of Dublin Castle. In Modern Irish the name is ''Duibhlinn'', and Irish rhymes from County Dublin show that in Dublin Leinster Irish it was pronounced ''Duílinn'' . The original pronunciation is preserved in the names for the city in other languages such as Old English , Old Norse , modern Icelandic  and modern Manx  as well as Welsh  and Breton . Other localities in Ireland also bear the name ''Duibhlinn'', variously anglicised as Devlin, Divlin and Difflin. Historically, scribes using the Gaelic script wrote ''bh'' with a dot over the ''b'', rendering Duḃlinn or Duiḃlinn. Those without knowledge of Irish omitted the dot, spelling the name as ''Dublin''. Variations on the name are also found in traditionally Gaelic-speaking areas of Scotland (Gàidhealtachd, cognate with Irish Gaeltacht), such as ''An Linne Dhubh'' ("the black pool"), which is part of Loch Linnhe.