General Prefixes:
* Ad-: Adding to, near, towards (e.g., "addex" - to add something)
* De-: Down, away, removal (e.g., "dedex" - to remove something, not a real word but illustrates the concept)
* In-: Into, in, on (e.g., "index" - a pointer or indicator)
* Re-: Again, back, anew (e.g., "redex" - to recolor something, not a real word but illustrates the concept)
* Sub-: Under, below (e.g., "subdex" - a lower level index, not a real word but illustrates the concept)
* Trans-: Across, through (e.g., "transdex" - to transmit data, not a real word but illustrates the concept)
Specialized Prefixes (related to specific fields):
* Bio-: Life, living organisms (e.g., "biodex" - a biomechanical index, not a real word but illustrates the concept)
* Chrono-: Time (e.g., "chronodex" - a time-based index, not a real word but illustrates the concept)
* Geo-: Earth, land (e.g., "geodex" - a geographical index, not a real word but illustrates the concept)
* Lexi-: Words, vocabulary (e.g., "lexidex" - a word index, not a real word but illustrates the concept)
* Psycho-: Mind, soul, spirit (e.g., "psycodex" - a psychological index, not a real word but illustrates the concept)
Note: Many of these prefix combinations are not actual English words. They are provided as examples to show how prefixes can be used to create new words with related meanings.