A lot vs. Alot: 9 Grammatical Pitfalls
1862, shortened form of veterinarian.
1848, shortened form of veteran.
"to submit (an animal) to veterinary care," 1891, from veterinarian. The colloquial sense of "subject to careful examination" (as of an animal by a veterinarian, especially of a horse before a race) is first attested 1904, in Kipling. Related: Vetted; vetting.