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Webster 1913 Edition
Satan
Sa′tan
(sā′tan, săt′an obs )
, Noun.
 [Heb. 
sātān 
an adversary, fr. sātan 
to be adverse, to persecute: cf. Gr. Σατᾶν
, Σατανᾶς
, L. Satan
, Satanas
.] The grand adversary of man; the Devil, or Prince of darkness; the chief of the fallen angels; the archfiend. 
I beheld 
Satan 
as lightning fall from heaven. Luke x. 18.
Webster 1828 Edition
Satan
SA'TAN
,Noun.