Classical Japanese form of 良い (yoi)

spirit; mind / energy; air; atmosphere / mood; feeling; intention / vigor; vitality; courage / character; nature; disposition

not necessary to; don't have to

Expresses gratitude or relief for something that happened in the past, a choice made, etc.

If only ~

It's good / okay to... / is fine

today, this day / nowadays

before the day is done

engagement, a promise to marry

all's well that ends well