'vasomotoric' originates from the combining form 'vaso-' (from Latin 'vas, vasis' meaning 'vessel') + 'motoric' (from Latin 'motor' meaning 'mover', from 'movere' 'to move').

'vaso-' (from Latin 'vas') combined with 'motor' (from Latin 'motor' < 'movere') in Modern Latin/late scientific usage to form terms like 'vasomotor', and the adjectival form 'vasomotoric' developed in English from these components.

Initially formed to denote motion or moving of vessels ('vessel-moving'), it evolved into the technical sense 'pertaining to the nerves/mechanisms that control vessel diameter' used in modern medical contexts.