IPA: /ˈʃæməs/
KK: /ˈʃæməs/
A person who takes care of a synagogue, often responsible for maintaining the building and assisting with religious services, or a special candle used to light other candles during Hanukkah.
The shammes lit the menorah for the festival of lights.
The word 'shammes' originates from Middle English 'shammes' (meaning a church official or sexton), which itself comes from the Old French 'chammes' (meaning a servant or attendant) and ultimately from the Latin 'camerarius' (meaning chamberlain or steward).
Think of a 'servant' ('chammes') who takes care of church duties, which helps you remember that a shammes is a church official.
No commonly confused words.