hebdomadal

adj

1. (obsolete)Lasting seven days.
2. Weekly, occurring once a week.

   “The wits and humourists, the distinguished worthies of the town or village, the apothecary, the attorney, even the curate himself, did not disdain to partake of this hebdomadal festivity.”

   “They quickly weary of this brief hebdomadal Sabbath here, yet they long for that eternal one; they dream of it, they talk about it, they think they think they are going to enjoy it—with all their simple hearts they think they think they are going to be happy in it!”