from
The Collaborative International Dictionary of English v.0.48
Buck \Buck\, v. t. [imp. & p. p. {Bucked} (b[u^]kt); p. pr. &
vb. n. {Bucking}.] [OE. bouken; akin to LG. b["u]ken, Dan.
byge, Sw. byka, G. bauchen, beuchen; cf. OF. buer. Cf. the
preceding noun.]
1. To soak, steep, or boil, in lye or suds; -- a process in
bleaching.
[1913 Webster]
2. To wash (clothes) in lye or suds, or, in later usage, by
beating them on stones in running water.
[1913 Webster]
3. (Mining) To break up or pulverize, as ores.
[1913 Webster]