IPA: /sʌbˈdiːkən/
KK: /sʌbˈdiːkən/
A religious official who holds a rank just below a deacon and assists in church services.
The subdeacon prepared the altar for the ceremony and read the Epistle during the service.
Subdeacon → It is formed from "sub-" (meaning under) and "diaconus" (from Latin, meaning servant or minister). The term refers to a cleric who serves under a deacon, thus being in a subordinate position.
Think of someone who is a 'servant' ('diaconus') 'under' ('sub-') another, which helps you remember that a subdeacon is a cleric serving under a deacon.