- 7,874
- Leiria
- jpfctf
- jpfctf
There has been a few e.g. CREPT, BLOWN etc.
AFAIK, the only exclusions are proper nouns and plurals...
But both those words can be used as Past Participles (words derived from verbs, that can be used as an adjective). I think it's in that context that they are included.
EDIT:
Apparently, LEAPT can also be the past participle, which is something I did not know. Maybe that's why.
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