What rhymes with endeavour

2 Syllables
clevereverleverneverseversoeverwhoever
3 Syllables
disseverendeavorendeavourforeverhoweverhowsoeverwhateverwhatsoeverwheneverwhensoeverwhereverwhicheverwhichsoeverwhomeverwhomsoeverwhosoever
4 Syllables
cantileverwheresoeverwhosesoever