Mid 16th century. Originally from classical Latin resignāt-, past participial stem of resignāreresign. In later use re-formed as back-formation from resignation.
Definition of resignate in US English:
resignate
verbˈrɛzɪɡneɪt
rare
with objectAnd without object = "resign".
Origin
Mid 16th century. Originally from classical Latin resignāt-, past participial stem of resignāre resign. In later use re-formed as back-formation from resignation.