Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
Ancient Greek πέσσω
Avestan 𐬞𐬀𐬗𐬀𐬌𐬙𐬌 (cognate)
English cook (cognate)
Ancient Greek πέπτω (mention)
Ancient Greek πεπ- (mention)
Proto-Hellenic *péťťō (inherited)
Proto-Indo-European *pekʷ- (root)
Proto-Indo-European (derived)
Proto-Indo-European *pekʷ- (mention)
Proto-Indo-European *pekʷ- (mention)
Latin coquō (cognate)
Sanskrit पचति (cognate)
Albanian pjek (cognate)

English peptic (mention)
Ancient Greek ὀπτός (mention)
Ancient Greek πέπων (mention)
Ancient Greek πέμμα (mention)
Ancient Greek πόπανον (mention)
Ancient Greek πέψις (affix)
Ancient Greek δρυπεπής (affix)
Latin coquo (cognate)
Latvian cept (cognate)
Russian печь (cognate)
Sanskrit पचति (cognate)
Albanian pjek (cognate)
Tocharian B päk- (cognate)
Tocharian A päk- (cognate)