unilateral
adj.
1802, from Modern Latin unilateralis, from unum, neuter of unus "one" (see one) + latus (genitive lateralis) "side" (see oblate, n.). Jeremy Bentham (1748-1832) may have been the first to use it in the legal sense of "made or entered into by one party." Related: Unilaterally. Unilateral disarmament is recorded from 1929.
It is useless for the sheep to pass resolutions in favor of vegetarianism, while the wolf remains of a different opinion. [William Ralph Inge, "Outspoken Essays," 1919]
〔李〕[uni-;later;-ala.] a.单边的； 片面的 ←later (L latus,lateris)=side 边
〔李〕a.一方的，单边的 [later=side] ←uni-[L] =one一；single单
〔蒋〕[uni单独，later边，-al…的] 一边的，单边的，一方的，片面的，单方面的
〔李〕[uni=one一；later=side边，方面；-al a.=of……的→] a. of one side;one-sided单边的；单方面的