desmayar
/desmaˈʝaɾ/ · B1 · verb
to faint
😵 desmayar ≈ dismay: so dismayed you faint
Spanish desmayar and English dismay share a root, Old French esmaier, meaning to lose heart. In English the word stopped at losing heart. In Spanish it went on to losing consciousness, so desmayarse means to faint.