asserteth

verb

1. (archaic, form-of, indicative, present, singular, third-person)third-person singular simple present indicative of assert

   “As hee ſuppoſeth each Congregation ſuch, as to have the priviledge of injoying a Presbyterie, or companie of more or leſſe Elders, proper unto it ſelfe; ſo being thus Presbyterated, hee aſſerteth this incorporate body or ſocietie to be the firſt and primary ſubject of a compleat and entire power within it ſelfe over its owne members; […]”

   “He likewiſe aſſerteth, That thoſe, who of late, ſo much blame Depoſing, are the men that did it themſelves, (meaning the Presbyterians.)”