septuplicate

[ noun adjective sep-too-pli-kit, -tyoo-; verb sep-too-pli-keyt, -tyoo- ]

noun

1. a group, series, or set of seven identical copies (usually preceded by in ).

adjective

1. having or consisting of seven identical parts; sevenfold.
2. noting the seventh copy or item.

verb (used with object)

, sep·tu·pli·cat·ed, sep·tu·pli·cat·ing.

1. to make seven copies of.
2. to make seven times as great, as by multiplying.

Word History and Origins

Origin of septuplicate¹

< Medieval Latin septuplicātus (past participle of septuplicāre to multiply by seven), equivalent to Late Latin septu ( plus ) septuple + -plicātus, as in quadruplicātus; quadruplicate