A leave of absence or vacation. (US) especially one granted to a member of the armed forces, or to a prisoner. (Britain) especially one granted to a missionary. The documents authorizing such leave. A period of unpaid time off, used by an employer to reduce costs
From Dutch verlof (“furlough”), probably from Middle Low German verlōf (“furlough, permission”), from the verb verlōven (“to allow”). From Middle Low German also German Verlaub, Danish forlov.