Yes, the formal mathematical term for multiplying something by 7 is septuple (or sometimes septupled), derived from Latin roots. Other related Latin-derived numerical multiplier terms include single (1), double (2), triple (3), quadruple (4), quintuple (5), sextuple (6), octuple (8), nonuple (9), and decuple (10), though conversational English typically prefers phrases like "seven times."
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