'ejaculatory-suppressing' is a compound formed from 'ejaculatory' (from 'ejaculate') and 'suppressing' (from 'suppress'). 'ejaculate' originates from Latin, specifically the verb 'eiaculari' (from 'e-' meaning 'out' + 'iaculāri' meaning 'to throw'), and 'suppress' originates from Latin 'supprimere' (from 'sub-' meaning 'under' + 'premere' meaning 'to press').

'ejaculate' passed into English via Late Latin/Medieval Latin and Old French influences to become the English 'ejaculate' and then the adjective 'ejaculatory'; 'suppress' passed from Latin 'supprimere' through Old French 'supprimer' into Middle English and became modern English 'suppress'. These two elements were later combined to form the compound 'ejaculatory-suppressing'.

Initially, 'ejaculate' literally meant 'to throw out' and 'suppress' meant 'to press down or check'; over time, in medical and pharmacological contexts the combined compound came to mean 'causing inhibition or reduction of ejaculation'.