いちど
once
The same itch いち you have in 一, and exactly one scratch at it. Flower viewing, that one time, years ago, and you still bring it up: いちど.
Same 度 as 今度 こんど. もう一度 もういちど is 'one more time'.
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Emaki is not affiliated with, or endorsed by, Kaishi 1.5k or its authors. The word, reading and meaning come from the Kaishi 1.5k deck, used with their permission. The mnemonic, the note and the kanji breakdown are original work, published under CC BY-SA 4.0.