Edited sentence: As late as mid Middle Ages present Lithuanian and Latvian coast was still inhabited by an original inhabitants of that land Chud' people (Finnish-Estonian).As to the name "Baltic people", known from the ancient times as Esti - it is an invention of Prussian academics for the similar political reason as the name Baltic is manipulated.In proto-Polish: balti "shine"; baltik "shiny one";  balto, bolto "shinedoer"; bloto "slush, mud"; baltno "shining"; baltno ezero "shining lake", lake Baltno (Balaton, as corrupted in Hungarian).Lithuanians have zero maritime tradition and to this very day sea fishes are consider by them to be "Polish".Omitting that etymology or deriving the name Baltic from the Lithuanian meaning 'white' is common although poor semantics and anachronism.Subsequently name Esti was appropriated by the Estonians originally called Chud'.[Adam of Bremen clearly mentions the name Baltic is Slavic