con + geal..geal...gelatinous..means to coagulate
con geal here geal sounds like jelly so congeal = co + jelly
CON(contract in size)+GELLY.....contract a substance which is in gelly(semisolid) form i.e to FREEZE it......hence congeal.....
eal(eel)- eel is generally found in the frozen area,water that is coagulated..
congeal=con(become)+geal(gelly)...g=becoming thicker(gelatin type)....
SOUNDS LIKE ANGEER , which is a dry fruit so its thick