Tricky question. I don't think there is a word that specifically means "Worn on the hand". There are plenty of five letter word things that are worn on the hand. Like gloves, and rings.
Glove.
tired
thumb?
thumb
glove
humanhey
Armor is a 5-letter word starting with A that means "mail," as in chain mail armor worn by medieval knights.
tired
shirt
Daily is a good word for a 5 letter word for everyday.
small 5 letter word
The 5 letter word for equal is 'alike'.