Play word 足掛け 足掛け あしかけ indicates a consecutive period of time incl. incomplete days, etc. at the ends
Play word 一眼二足三胆四力 一眼二足三胆四力 いちがんにそくさんたんしりき firstly vision, secondly footwork, thirdly courage, fourthly technique (the most important aspects of kendo)
Play word 一足一刀 一足一刀 いっそくいっとう distance in sword combat where approaching one more step allows hitting one's opponent