Webster's Dictionary [1]
(1): ( v. i.) To make an effort to vomit; to strain, as in vomiting.
(2): ( v. t. & i.) To care for; to heed; to reck.
King James Dictionary [2]
Retch, See Reach.
To make an effort to vomit to heave as the stomach to strain, as in vomiting properly to reach.
References