When an abbreviation serves as a verb, the past participle generally takes an apostrophe followed by a d:

KO'd ID'd OD'd OK'd

What is the proper present participle? If

KOing IDing ODing OKing

is correct, then why should the past participle require an elision? It seems to aid readability, so should the -ing form be

KO'ng ID'ng OD'ng OK'ng


  • 1
    I would understand if you were asking about "KO'ing", but "KO'ng" is quite obviously not an option. You will be hard pressed to find a single instance of "'ng" in any book, article, or even YouTube comment. – RegDwigнt May 8 '14 at 15:27
  • 1
    I'm not sure why it is "obviously" not an option. In the past tense, the apostrophe takes the place of the e in -ed, but why should it do that? If KO'ing is correct, then why shouldn't the past tense be KO'ed? – user66965 May 8 '14 at 15:35
  • @surlawda: He said that KO'ng was wrong, not KO'ed. KO'ed is OK. T – John Lawler May 8 '14 at 15:39
  • Yes, thanks, I can see that. But he also didn't say that KO'd was wrong. Is that what you are saying? – user66965 May 8 '14 at 15:44
  • I have seen this written as ID-ing/OD-ing etc. I can't recall previously seeing KO-ing/OK-ing. – Sam May 8 '14 at 15:57

I gather it's OK'd and OK'ing. Okaying and okayed are also accepted.

Since that is the generally accepted form, KO'd and KO'ing would be the correct form for KO, and OD'd and OD'ing would be the correct from for OD.

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