ACE - A single point or spot on a playing card or die.
ADD - To join or unite, as one thing to another, or as several particulars, so as to increase the number, augment the quantity, or enlarge the magnitude, or so as to form into one aggregate. Hence: To sum up; to put together mentally.
AYE - Ever, always.
DAD - A father, a male parent.
DAY - Any period of 24 hours.
EYE - An organ that is sensitive to light, which it converts to electrical signals passed to the brain, by which means animals see.
CAD - A person who stands at the door of an omnibus to open and shut it, and to receive fares; an idle hanger-on about innyards.
YEA - Yes.
CAY - A small, low island largely made of sand or coral.
DEAD - No longer living.
EYED - Having eyes.
DYED - Coloured or tinted with dye.
ACED - Simple past tense and past participle of ace.
EDDY - A current of air or water running back, or in an opposite direction to the main current. Especially a circular current.
DECAY - The process or result of being gradually decomposed.
CADDY - One hired to assist another in playing the game of golf.
DECADE - A series of ten Hail Marys in the rosary.
DECAYED - Describing something that has, or is in process, of decaying.