The Collaborative International Dictionary
Succursal
Succursal \Suc*cur"sal\, a. [Cf. F. succursale. See Succor, n. & v. t.] Serving to aid or help; serving as a chapel of ease; tributary. [R.]
Not a city was without its cathedral, surrounded by its
succursal churches, its monasteries, and convents.
--Milman.
Wiktionary
succursal
a. 1 subsidiary (to a religious establishment) 2 Serving to aid or help; serving as a chapel of ease; tributary.