der - to dwell, to stay (LS 530; CSOL I 530; CSOL II 380; Naumkin et al. 2015a:67)

PS
*dwr - to go around, to turn (EDA II)

In various Semitic languages, PS *dwr ‘to go round’ acquired the meaning ‘to stay permanently in one place, to dwelľ. A variant root *dhr is attested in some WS languages.