prod·i·gal·i·ty (prŏd'ĭ-gāl'ĭ-tē) n.
pl.prod·i·gal·i·ties
Extravagant wastefulness.
Profuse generosity.
Extreme abundance; lavishness.
[Middle English prodigalite, from Old French, from Late Latin prōdigālitās, from Latin prōdigus, prodigal, from prōdigere, drive away, to squander : prōd-, prō-, for, forth; see proud + agere, to drive; see ag- in Indo-European roots.]