What is the prefix, suffix, and root for slavery?

No prefix
Suffix-ery or ry?
Root- slave

Is my suffix correct, if yes what is the definition?

http://www.merriam-webster.com/dictionary/slavery

Yes, you are correct as to the suffix.

Yes, your suffix is correct. The suffix "-ery" or "-ry" typically denotes a condition or state, or it can turn a noun into an abstract noun indicating a place or establishment related to the root word. In the case of "slavery," the suffix "-ery" or "-ry" signifies the condition or state of being a slave.

Yes, your suffix is correct. The suffix "-ery" or "-ry" can be added to a root word to form a noun that represents a place or condition. In this case, the suffix "-ery" or "-ry" added to the root word "slave" creates the noun "slavery," which refers to the state or condition of being a slave.