ary , ▁certain ▁semantic ▁fields ▁never theless ▁remained ▁more ▁resist ant . ▁Term s ▁per tain ing ▁to ▁social ▁organization ▁are ▁often ▁preserved , ▁though ▁not ▁those ▁per tain ing ▁to ▁political ▁organization , ▁while ▁those ▁per tain ing ▁to ▁trade ▁are ▁all ▁loan ed ▁or ▁innov ated . ▁ ▁While ▁the ▁words ▁for ▁plants ▁and ▁animals ▁characteristic ▁of ▁mountain ous ▁regions ▁are ▁entirely ▁original , ▁the ▁names ▁for ▁fish ▁and ▁for ▁agricult ural ▁activities ▁are ▁often ▁assumed ▁to ▁have ▁been ▁borrow ed ▁from ▁other ▁languages . ▁However , ▁considering ▁the ▁presence ▁of ▁some ▁preserved ▁old ▁terms ▁related ▁to ▁the ▁sea ▁fa una , ▁some ▁have ▁proposed ▁that ▁this ▁voc ab ul ary ▁might ▁have ▁been ▁lost ▁in ▁the ▁course ▁of ▁time ▁after ▁proto - Al ban ian ▁tribes ▁were ▁pushed ▁back ▁into ▁the ▁in land ▁during ▁invas ions . ▁Wil kes ▁holds ▁that ▁the ▁S lav ic ▁lo ans ▁in ▁Alban ian ▁suggest ▁that ▁contacts ▁between ▁the ▁two ▁populations ▁took ▁place ▁when ▁Alban ians ▁dw elt ▁in ▁for ests ▁ 6 0 0 – 9 0 0 ▁metres ▁above ▁sea ▁level . ▁Rus akov ▁notes ▁that ▁almost ▁all ▁lex emes ▁related ▁to ▁se am ans hip ▁in ▁the ▁Alban ian ▁language ▁are ▁loan - words , ▁which ▁may ▁indicate ▁that ▁speak ers ▁of ▁the ▁proto - language ▁did ▁not ▁live ▁on ▁the ▁Adri atic ▁coast ▁or ▁in ▁close ▁proxim ity ▁to ▁it . ▁ ▁Latin ▁and ▁early ▁Rom ance ▁lo ans ▁Latin ▁lo ans ▁are ▁particularly ▁numerous ▁and ▁reflect ▁different ▁chron ological