抱った vs 抱いた and 書った vs 書いた


I have always known that for a verb that ends with a `く`, the past/perfective
form ends with `いた` and the conjugative form ends with `いて`.

But today I found in Wiktionary that there are alternative perfective forms
[`抱った`/`抱って` for
`抱く`](http://en.wiktionary.org/wiki/%E6%8A%B1%E3%81%8F#Conjugation_2) and
[`書った`/`書って` for
`書く`](http://en.wiktionary.org/wiki/%E6%9B%B8%E3%81%8F#Related_terms).

Are those simply typo/mistake in Wiktionary or could there be some truths in
them?

Screenshot:

![enter image description here](https://i.stack.imgur.com/VzS6W.png)




I no longer use Rikaichan because it made me lazy (and I switched to
Chrome...), but I remember that if you typed a く verb with a って/った conjugation
and punched it in, it would still pop up and show as the て/た form. Give it a
shot. Unfortunately I can't explain why, but it leads me to believe that maybe
it was correct at some point. There's a 国語 teacher right next to me, but I'm
too embarrassed to ask :/

