two-timer

Mane (Îngilîzî)

A person who two-times another.

Hevwate

traitor

double-crosser

double-dealer

betrayer

con man

deceiver

fake

finagler

fraud

goldbrick

impersonator

imposter

phony

ringer

scammer

shark

🦈

spiv

swindler

utterer

weasel

welcher

welsher

shammer

ganef

sandbagger

clip artist

ganof

gonif

goniff

sharpy

charlatan

cheat

cheater

Werger

traïdor

traitre

traître

doppiogiochista

traditore

informante

traidor

traição

Etîmolojî (Îngilîzî)

From two-time + -er.