As I'm encountering more words with rendaku, I thought I started to understand it, but I came across an example that does not make sense to me.
Why is 気 voiced き in 元気 and 本気, but is voiced ぎ in 一本気 ? In other words, why is there no rendaku in 本気 ?
From other questions, I see that there is some unpredictability about rendaku… but those words are really close to one another.