tor·por 
(tôrpər)
(tôrpər)n.
1. A state of mental or physical inactivity or insensibility.
2. Lethargy; apathy. See Synonyms at lethargy.
3. The dormant, inactive state of a hibernating or estivating animal.
[Latin, from torpēre, to be stiff; see ster-1 in the Appendix of Indo-European roots.]
tor′po·rific (-pə-rĭfĭk) adj.