gluttony, voracity, ravenousness, greediness, insatiability, hunger, self-indulgence, appetite, craving, avarice, covetousness, greediness, materialism, acquisitiveness, passion, longing, desire

His question was asked with great voracity.

Some words end with acity:

* audacity

* capacity

* edacity

* efficacity

* feracity

* fugacity

* incapacity

* loquacity

* megacity

* mendacity

* minacity

* opacity

* overcapacity

* perspicacity

* pertinacity

* predacity

* pugnacity

* rapacity

* sagacity

* salacity

* sequacity

* tenacity

* veracity

* vivacity

* voracity

The cast of Voracity - 2012 includes: Charley Coleman as Jim

The noun form for the adjective voracious is voraciousness.