تباينا

They two (namely, two men, and two copartners,) became separated, each from the other: (M, TA:) or they forsook, or abandoned, each other; or cut each other off from friendly or loving communion or intercourse; or cut, or ceased to speak to, each other. (K.) And تباينوا They, having been together, became separated: (Msb:) or they forsook, or abandoned, one another; or cut one another off from friendly or loving communion or intercourse; or cut, or ceased to speak to, one another. (S.)

[Hence, They two were dissimilar: and they two (namely, words,) were disparate; whether contraries or not: and they two (namely, numbers,) were incommensurable.]