Word Study
Newt
CIDE DICTIONARY
Newt, n. [OE. ewt, evete, AS. efete, with n prefixed, an ewt being understood as a newt. Cf. Eft.].
Any one of several species of small aquatic salamanders. The common British species are the crested newt (Triton cristatus ) and the smooth newt (Lophinus punctatus ). In America, Diemictylus viridescens is one of the most abundant species. [1913 Webster]
OXFORD DICTIONARY
Newt, n. any of various small amphibians, esp. of the genus Triturus, having a well-developed tail.
Etymology
ME f. ewt, with n from an (cf. NICKNAME): var. of evet EFT
For further exploring for "Newt" in Webster Dictionary Online