Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
Latvian pirkt
Ancient Greek περνάναι (cognate)
Ancient Greek πιπράσκειν (mention)
Proto-Balto-Slavic *per-k- (mention)
Proto-Balto-Slavic *pr̥k- (mention)
Proto-Indo-European *per- (derived)
Proto-Indo-European *pr̥-nā- (mention)
Proto-Indo-European *per- (mention)
Latin emere (cognate)
Lithuanian pir̃kti (cognate)
Latvian - (cognate)
Latvian par (mention)
Latvian pār (mention)
Latvian prece (mention)
Latvian pirkt (mention)
Latvian pērkons (mention)
Old Irish renim (cognate)

Lithuanian pirkti (cognate)
Latvian pirkt (mention)
Latvian pirkšana (suffix)
Latvian pirkums (suffix)
Latvian pircējs (suffix)
Latvian pircēja (suffix)