1. con- together, together with, with (Latin)
(also: com-, co-, cog-, col-, cor-)
together, together with, with (Latin)

2. con- (also: com-, co-, cog-, col-, cor-)
together, together with, with (Latin)
cor- (“with”)
Correspond: v. 1300
re- (“again”)
To communicate with someone one more than once, usually exchanging writing.
(communicate with )
-spond (“to pledge)”
Best root def:
“together”
Corresponding with Old-school letter-writing and “snail-mail”—very retro.

3. con- (also: com-, co-, cog-, col-, cor-)
together, together with, with (Latin)
cap- (cip-, cap-, capt-, cept-, ceive, -ceipt, -ceit, -cipient):
catch, seize, take, take hold of, receive, contain, take, hold; caught, taken prisoner (Latin)
cor- (“with”)
corroborate v. 1530s
-robor (to strengthen)
a story or fact that is confirmed by other evidence
(pieces of evidence are stronger together)
-ate (suffix; creates
verbs and adjs )
Trump said he saw “Arabs dancing
on rooftops in NYC after 9/11,” but that could never be corroborated.
Best root def:
“together”

4. con- (also: com-, co-, cog-, col-, cor-)
together, together with, with (Latin)
cap- (cip-, cap-, capt-, cept-, ceive, -ceipt, -ceit, -cipient):
catch, seize, take, take hold of, receive, contain, take, hold; caught, taken prisoner (Latin)
coagulate 
The enemy with whom you are fighting
codefendant
When animals can live in a space together.
collaborate  
When people, esp. in church, gather together.
coincidence 
The person on trial with you.
cohabitation
When people work together on something.
combatant 
When blood cells bind together to make a scab.
congregation 
When things randomly happen together.