Meaning

adjective subject to being reserved or booked

originEtymology tree Proto-Indo-European *bʰeh₂ǵosder.? Proto-Indo-European *bʰeh₂g-der.? Proto-Germanic *bōks Proto-West Germanic *bōk Old English bōc Middle English bok English book Proto-Indo-European *-tḗr Proto-Indo-European *-dʰlom Proto-Indo-European *-dʰlis Proto-Italic *-ðlis Latin -bilis Latin -ābilis Old French -ablebor. Middle English -able English -able English bookable From book + -able.

Etymology from Wiktionary, CC BY-SA 3.0