'anarthric' originates from Greek, specifically the word 'anarthros,' where 'an-' meant 'not' and 'arthron' meant 'joint' or 'article.'

'anarthros' was adopted into Late Latin as 'anarthricus,' and eventually became the modern English word 'anarthric.'

Initially, it meant 'without joints' or 'not articulated,' but over time it evolved into its current meaning of 'lacking an article (in grammar).'