tarheelhockey
Offside Review Specialist
I always preferred that the 'A' stand for 'Assistant' Captain - like one is assisting with the leadership duties that are typically associated with the Captain.
'Alternate' makes it sound like one is an alternative option for the Captain role, rather than actively assisting with the leadership duties (IMHO)
I see it the opposite way — there is no such thing as “assisting” the captain.
Why? Because the captain is defined as the player who may speak to the officials near the referee’s crease at the penalty box. That task requires no assistance, it’s just a conversation.
What happens when the captain is on the bench? Another player on the ice takes his place… an alternate player… the alternate captain.