- donate (v.)
- 1819, back-formation from donation. Related: Donated; donating.
- protogenic (2)
- "Of a substance, molecular species, etc.: able to supply a hydrogen atom for protonation; proton-donating; = protic. Opposed to protophilic", 1930s; earliest use found in Journal of the American Chemical Society. From proto- + -genic. Compare German protogen, adjective.