The Proto-Celtic word *siskʷo
Word *siskʷo
Meaning dry
Synonyms *krasto-

Other words that might be of interest
*akʷā ‘water’, *dubro ‘water’, *stagro ‘river, water’, *wera ‘rain’, *u̯o-lawo ‘rain’, *jagi ‘ice’, *korkākā ‘swamp’