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Webster 1913 Edition
Elephantine
Elˊe-phan′tine
,Adj.
 [L. 
elephantinus 
of ivory, Gr. [GREEK]: cf. F. éléphantin
.] Pertaining to the elephant, or resembling an elephant (commonly, in size); hence, huge; immense; heavy; 
as, of 
 elephantine 
proportions; an elephantine 
step or tread.Webster 1828 Edition
Elephantine
ELEPHANT'INE
,Adj.
  1.
  In antiquity, an appellation given to certain books in which the Romans registered the transactions of the senate, magistrates, emperors and generals; so called perhaps, as being made of ivory.