This paper discusses the etymological nest of Dravidian and Altaic lexemes with the meaning “to bow, bend” and the terms for the “elbow,” “knee,” “ankle” as a dynamic etymological model. The lexemes have the general formal structure of the CVC- root with an initial dental (stop or nasal) and medial velars or labials. In the first section of the paper the verbs and some of their derivatives are listed and discussed also with regards to several overlapping etyma with different meanings. The second section sums up the terms for the body parts related etymologically to the respective verbs. In the conclusion select Altaic reconstructions are listed for comparison.