septuplicate

[sep-too-pli-kit, -tyoo-, sep-too-pli-keyt, -tyoo-]

noun

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

adjective

1. having or consisting of seven identical parts; sevenfold.

2. noting the seventh copy or item.

verb (used with object)

septuplicated, septuplicating 

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