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Aqua/Aqu
Water
Phon
Sound
Circ/Circum
Around
Chron
Time
Tend/Tens/Tent
Stretch, Give
Hydr
Water
Mem
Mindful, Recall
Centr/Center
Middle
Temp
Tme
Hosp
Guest
Mar/Mer
Sea, Ocean
Ology
Study
Dict
Say, Declare
Loc
Place
Onym
Name
Vis/Vid
See, Look
Sci
To Know
Scrib/Script
Write
Mob/Mot
Move
Host
Stranger, Enemy
Aud
Hear
Cycl
Circle
Graph, Gram
Write, Draw, Describe, Record
Tract
The difference between Hydr/Aqua/Aqu and Mar/Mer?
Hydr/Aqua/Aqu mean water (fresh)-ponds, lakes, streams, rivers
Mar/Mer means water (salt) - oceans, seas