The Thracian word arma
Word arma
Meaning swamp
Synonyms kaba(s), pala

Other words that might be of interest
achel- ‘water’, ala ‘current, stream’, alta ‘current, stream’, ars ‘to flow’, arta(s) ‘river’, e(i)b ‘to flow’, iuras ‘water, river’, kalsas ‘dry, dried up’, mar ‘water, river, bog’, ostas ‘river mouth’, sara ‘river’, sind(u)- ‘river’, strumon ‘river’, opa ‘water’, krisos ‘river name’