"Tea" (the character imprinted on the above block of tea) is the Amoy pronounciation of the Mandarin "Cha" if you didn't already know. In fact, there are a lot of loanwords from Chinese that we use in English.
Among the notable standouts:
These terms probably came into English do to contact with missionaries and traders and due to the colonization of parts of China of various foreign powers.
Visit the site below to find many more: