Answer: ad- ad- WORD ORIGIN. a prefix occurring in loanwords from Latin, where it meant “toward” and indicated direction
Step-by-step explanation:
A prefix is an affix which is placed before the stem of a word. Adding it to the beginning of one word changes it into another word. For example, when the prefix un- is added to the word happy, it creates the word unhappy. ... Prefixes, like all other affixes, are usually bound morphemes. The prefixes are: con-, com-, geo-, inter-, mal-, mega-, micro-, mis-, para-, poly-, over-, post-, tele-, therm-, trans-