IPA: /ˈsʌt.lər/
KK: /ˈsʌtlər/
A person who sells food and supplies to soldiers, usually in a military camp.
The sutler set up his shop near the army camp to sell goods to the soldiers.
Sutler → The word originates from the Middle Dutch 'soeteler', meaning a person who sells provisions, especially to soldiers. It refers to someone who provides supplies, particularly food and drink, to military personnel.
Think of a person who supplies food and drink to soldiers — that's what a sutler does.