"ex" means out/outside, "extra" means outside/except/without, both originate from Latin.
"Dia" means through or between, originates from Greek.
contra- contro- and counter- mean "against" (from Latin)
"Circum" originates from Latin, meaning "around."
"Cata" comes from Greek, meaning downward or completely.
"ab" or "abs" originates from Latin, with meanings "away" or "from."
Root stru or struct originates from Latin verb struere and its past participle structus, meaning build.
it originates from Latin verb dūcere, meaning "lead"
Prefix "sym" or "syn" originates from Greek, meaning with or together with. The prefix can also be "sy" or "syl" in spelling.
cred originates from Latin word crēdere, means "to believe."
"grad" and "gress" are originated from Latin verb gradus/gressus, meaning to walk or to advance.
Root "cur" is originated from Latin word "cūrāre", means care, cure or manage.
dia is a root word originated from Greek, meaning "through" or "between".