espouse

1 ENTRIES FOUND:
espouse /ɪˈspaʊz/ verb
espouses; espoused; espousing
espouse
/ɪˈspaʊz/
verb
espouses; espoused; espousing
Britannica Dictionary definition of ESPOUSE
[+ object] formal
: to express support for (a cause, belief, etc.)

— espouser

noun, plural espousers [count]