- seasgann
- a fenny country, marsh, Irish seisgeann, Early Irish sescenn; from *sesc, sedge, Irish seisg, sedge, Welsh hesg (pl.), Cornish hescen, Breton hesk, whence Romance sescha, reed; cf. English sedge, Indo-European root seq, cut. Zimmer refers seasgann to seasg, dry, though it denotes wet or marsh land.
Etymological dictionary of the Gaelic language. Alexander Gairm Publications. 1982.