The beleaguered alligator will rise on his stubby legs, distend his body, open wide his cavernous jaws, suspire what is supposed to be a dreadful hiss but sounds more like a tired sigh, and then ferociously clash his jaws together.
-- Archibald Rutledge, Monsters of the Swamp
For, since the birth of Cain, the first male child,/ To him that did but yesterday suspire,/ There was not such a gracious creature born.
-- William Shakespeare, The life and death of King John
Suspire's origin is in the Latin suspirare, "to draw a long breath."