Κηφισίς

α, ον, ς, Adj.
2. at Athens, S. OC 687(lyr.), etc.
3. in Argolis, etc., Str. 9.3.16, etc.: —freq. written Κηφισσός in codd., but -ς- in derivs. in Att. Inscrr.
Liddell, Scott & Jones
A Greek-English Lexicon, 1940
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