ラテン語のperiurium, perjury, per-, whole, -jur, to swearから、語源的にはadjure, juryと同じ、すなわち誓うこと、語源的には侮蔑的、語源的には偽証、偽誓。perfidyと比較される。
英語の語源
perjure (v.)
mid-15c. "swear falsely" (implied in perjured; late 13c. in Anglo-French), from Old French parjurer "to break one's word, renege on a promise" (11c.), from Latin periurare "to swear falsely, break one's oath" (see perjury). Reflexive sense is from 18c.
例文
1. She would rather perjure herself than admit to hersins.