The act of breathing heavily or gasping for breath, especially after exertion or from difficulty breathing.
From Latin 'anhelare' (to pant or gasp) from 'an-' (towards) + 'halare' (to breathe). A formal/archaic term rarely used in modern English.
This is such an old-fashioned word that you'd probably only see it in Victorian literature—but it's the perfect word to describe when someone's completely out of breath and can barely talk!
Complete word intelligence in one call. Free tier — 50 lookups/day.