quad·ren·ni·um 
(kwŏ-drĕnē-əm)
(kwŏ-drĕnē-əm)n. pl. quad·ren·ni·ums or quad·ren·ni·a (kwô-drĕnē-ə)
A period of four years.
[Latin quadriennium : quadri-, quadri- + annus, year; see at- in the Appendix of Indo-European roots.]
- miscellaneousness
- miscellanist
- miscellany
- mischance
- mischaracterization
- mischaracterize
- mischief
- mischief-maker
- mischief-making
- mischievous
- mischievously
- mischievousness
- miscibility
- miscible
- misclassification
- misclassify
- miscommunication
- misconceive
- misconceiver
- misconception
- misconduct
- misconstruction
- misconstrue
- miscopy
- miscount