sextuple

Concise Oxford English Dictionary © 2008 Oxford University Press:
sextuple /ˈsɛkstjʊp(ə)l, sɛksˈtjuːp(ə)l/

▶adjective

• 1 consisting of six parts or elements.

• 2 six times as much or as many.

▶verb increase or be increased sixfold. ▶noun a sixfold number or amount.

– derivatives
sextuply adverb.

– origin C17: from med. L. sextuplus, formed irregularly from L. sex ‘six’, on the pattern of late L. quintuplus ‘quintuple’.