A grammatical term for potential verbs — verb forms that express ability or possibility (e.g., '話せる', '書ける'), often derived from u-verbs.
「話す」の可能動詞は「話せる」です。
The potential verb of '話す' is '話せる'.
日本語の可能動詞は能力や許可を表すのに使われます。
Japanese potential verbs are used to express ability or permission.
『書く』→『書ける』のように、u動詞から形成される可能動詞の例は多い。
There are many examples of potential verbs formed from u-verbs, such as '書く' → '書ける'.