plen·i·tude 
(plĕnĭ-td′, -tyd′)
(plĕnĭ-td′, -tyd′)n.
1. An ample amount or quantity; an abundance: a region blessed with a plenitude of natural resources.
2. The condition of being full, ample, or complete.
[Middle English, from Old French, from Latin plēnitūdō, from plēnus, full; see pelə-1 in the Appendix of Indo-European roots.]
plen′i·tudi·nous (-tdn-əs, -tyd-) adj.