σερπετό

The /s/ was possibly inserted by influence of Aromanian sharpi / sharpe (“snake”) and/or Venetan sarpente, serpente (“snake”). Alternatively by influence of σέρνω (sérno, “to crawl”).

σερπετό • (serpetó) n (plural σερπετά)

1. dialectal form of ερπετό (erpetó, “reptile”)

• σερπετό, in Λεξικό της κοινής νεοελληνικής [Dictionary of Standard Modern Greek], Triantafyllidis Foundation, 1998 at the Centre for the Greek language
• Aravantinós, P. (1909) “σερπετό”, in Ἠπειρωτικὸν γλωσσάριον [Ēpeirōtikòn glōssárion, Glossary of Epirus] (in Katharevousa), page 82