Dict: strongs - viper

Strongs:

H6848 @ צפעני צפע tsepha‛ tsiph‛ônîy {tseh'-fah} tsif-o-nee' From an unused root meaning to extrude; a viper (as thrusting out the {tongue} that {is} hissing): - {adder} cockatrice.

H660 @ אפעה 'eph‛eh ef-eh' From H659 (in the sense of hissing); an asp or other venomous serpent: - viper.

G2191 @ ἔχιδνα echidna ekh'-id-nah Of uncertain origin; an adder or other poisonous snake (literally or figuratively): - viper.