The Thracian word strumon
Word strumon
Meaning river
See also Proto-Indo-European: *s(t)r-ew-/s(t)r-ow-/s(t)r-u-/sreu̯- ‘to flow’
Synonyms arta(s), iuras, mar, sara, sind(u)-

Comments

Old Icelandic straumr ‘stream, current’; Old Frisian strām ‘stream’; Old Saxon strōm ‘stream’; Old High German stroum ‘stream, current’.


Other words that might be of interest
achel- ‘water’, ala ‘current, stream’, alta ‘current, stream’, arma ‘swamp’, ars ‘to flow’, e(i)b ‘to flow’, kaba(s) ‘bog, swamp’, kalsas ‘dry, dried up’, ostas ‘river mouth’, pala ‘swamp’, opa ‘water’, krisos ‘river name’