steadfast - Dictionary definition and meaning for word steadfast
steadfast~stood + first ; One who has always STOOD with you and is the FIRST one to help you is a LOYAL friend. Another meaning - Always STEADY so unswerving
STEADFAST-- Split as STEADY+fast someone who is steady always
stead+fast...STEAD(substitute)...Coach choses that substitute(STEAD) FAST, who is the FIRM, LOYAL player in the team.