Answer:
Your answer would be "before".
Step-by-step explanation:
The meaning of the prefix "pre" in the underlined word is "before". "Pre" is a prefix which occurs originally in loanwords from Latin where it meant "before". . It is applied freely as a prefix meaning "prior to", "in advance", "beforehand". What is more, it can have other figurative meanings, such as preschool, prewar, etc.