cabin (n.)

"a hut or shelter," 1898, western U.S., from American Spanish cognate of cabin (q.v.).

1540s, "secret storehouse, treasure chamber; case for valuables," from French cabinet "small room" (16c.), diminutive of Old French cabane "cabin" (see cabin); perhaps influenced by (or from) Italian gabbinetto, diminutive of gabbia, from Latin cavea "stall, stoop, cage, den for animals" (see cave (n.)).

The meaning "case for safe-keeping" (of papers, liquor, etc.) is from 1540s, gradually shading to mean a piece of furniture that does this. The sense of "private room where advisers meet" (c. 1600) led to the modern political meaning "an executive council" (1640s); perhaps originally short for cabinet council (1620s); compare board (n.1) in its evolution from place where some group meets to the word for the meeting group. From 1670s also "building or part of a building set aside for the conservation and study of natural specimens, art, antiquities, etc."

1747, "ship's cookhouse," from Middle Dutch kambuis "ship's galley," from Low German kabhuse "wooden cabin on ship's deck;" probably a compound whose elements correspond to English cabin and house (n.). Railroading sense "car for the use of the conductor, brakeman, etc.," is by 1859.