n. (Mech.) A by-passage, for a pipe, or other channel, to divert circulation from the usual course. [ 1913 Webster ]
n. A passage different from the usual one; a byway. [ 1913 Webster ]
a. Past; gone by. “By-past perils.” Shak. [ 1913 Webster ]
n. [ From Ambrose Phillips, in ridicule of the extreme simplicity of some of his verses. ] Talk or writing which is weakly sentimental or affectedly pretty. Macaulay. [ 1913 Webster ]
a.
Namby-pamby madrigals of love. W. Gifford. [ 1913 Webster ]