'language' originates from Old French 'langage', from Latin 'lingua' meaning 'tongue, speech'. 'Related' comes from Latin 'relatus', past participle of 'referre' meaning 'to bring back'.

'Language' evolved from Old French 'langage' to Middle English 'language'. 'Related' evolved from Latin 'relatus' to Middle English 'relaten'.

Initially, 'language' meant 'tongue or speech', and 'related' meant 'brought back'. Over time, 'language' evolved to mean 'system of communication', and 'related' evolved to mean 'connected'.