Finnish pettää

← Estonian petma (cognate)

← Proto-Finnic *pettädäk (inherited)

← Livonian piett (cognate)

← Lithuanian spę́sti (cognate)

→ Estonian petma (mention)

→ Finnish petos (suffix)

→ Finnish petturi (suffix)

→ Finnish pettäjä (suffix)

→ Finnish pettyä (suffix)

→ Finnish petollinen (affix)

→ Finnish pettämätön (affix)

→ Ingrian pettää (cognate)

→ Northern Sami beahttit (borrowed)