The Collaborative International Dictionary
Servient \Serv"i*ent\, a. [L. serviens, -entis, p. pr. See
Serve.]
Subordinate. [Obs. except in law.]
--Dyer.
Servient tenement or Servient estate (Law), that on which
the burden of a servitude or an easement is imposed. Cf.
Dominant estate, under Dominant.
--Gale & Whately.
Douglas Harper's Etymology Dictionary
1640s, from Latin servientem "subordinate," present participle of servire "be a servant, be a slave" (see serve (v.)).
Wiktionary
a. (context obsolete legal English) subordinate
Wikipedia
Usage examples of "servient".
The other would be the former Servient Cousinnow Dominantwhich would have acquired the main thrust and probabilistic strength of temporal evolution.
I also remembered her to be a very gentle and unselfish woman, and a very timid one, timid to the point of being thoroughly sub- servient to anyone who happened to be around.
This seems to be written of a rural servitude (aqua) which was lost by mere disuse, without adverse user by the servient owner.