SPARE (in reserve)
ADJECTIVES
1597 — ORRA spare, superfluous, sundry → Sc.
1613 — SUBSECIVE remaining over, spare → obs.
1915 — BUCKSHEE spare, extra → sl.
1938 — GASH superfluous, extra, spare → UK sl., orig. nautical usage
1940 — BACKUP available as a replacement; spare, standby
NOUNS
1911 — BLICHER a spare portion → Sc. (Bk.)
1917 — BUCKSHEE something extra, free, or spare → sl., orig. army usage