IPA: /kəˈmɪsəri/
KK: /kəˈmɪsəri/
A place where food and supplies are sold, often found in military bases or film studios, or a person assigned to carry out a specific duty.
The soldiers went to the commissary to buy groceries and other supplies.
Commissary → It is formed from "com-" (meaning together) and "missus" (the past participle of "mittere", meaning to send). The word originally referred to someone who is sent together with others, often in a military context, to provide supplies or support.
Think of someone who is 'sent together' ('com-') to provide support or supplies — that's what a commissary does.