effectual
adjective /ɪˈfektʃuəl/
/ɪˈfektʃuəl/
(formal)- (of things, not people) producing the result that was intended synonym effective
- an effectual remedy
Word Originlate Middle English: from medieval Latin effectualis, from Latin effectus, from efficere ‘accomplish’, from ex- ‘out, thoroughly’ + facere ‘do, make’.