mid 18th century: from expend, suggested by obsolete expenditor ‘officer in charge of expenditure’, from medieval Latin, from expenditus, irregular past participle of Latin expendere (see expend)
18世紀半ば:expendから、時代遅れのexpenditor「支出担当官」、中世ラテン語のexpenditus、ラテン語expendereの不規則過去分詞から示唆された(expendを参照)。