抱った vs 抱いた and 書った vs 書いた

Question

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 and 書った/書って for 書く.

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

Screenshot:

Answer 1

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 :/