Thanks, Bill. I guess you are right.

These two words are not the past tense of verbs. Wick is a noun, and wicked doesn't seem to have anything to do with wick, while nake is not even a word.

Since my laptop crashed, I recorded this clip with my netbook. Guess the sound effect is different. 后部发音 stays a mystery for me up until this moment.

What about following NewVoice姐姐's convention and call me 肖姐姐? :-)