度ど忘わすれ

noun, noun or participle which takes 'suru', transitive verb, intransitive verb

momentary lapse of memory; forgetting something one knows well

Refers to a temporary, often frustrating, inability to recall something familiar, like a name or a word. Commonly used with する to describe the act of forgetting momentarily.

• 彼かれの名な前まえが度ど忘わすれして出でてこなかった。

  I had a mental lapse and couldn't recall his name.

• 試し験けん中ちゅうに簡かん単たんな漢かん字じを度ど忘わすれした。

  During the exam, I blanked on a simple kanji.