Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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Latin quattuor
Old English fēower (cognate)
English four (cognate)
Ancient Greek τέσσαρες (cognate)
Proto-Indo-European *kʷetwṓr (inherited)
Proto-Indo-European *kʷetwóres (mention)
Proto-Italic *kʷettwōr (inherited)
Sanskrit चतुर् (cognate)
Old Armenian չորք (cognate)

English quarrel (mention)
English cadre (mention)
English quadri- (mention)
English quarry (mention)
English quadriceps (mention)
English quadrivium (mention)
English quadrennial (mention)
English quadruplex (mention)
English quadrate (mention)
English quadriga (mention)
English quattuorvirate (mention)
Aragonese quatre (inherited)
Asturian cuatro (inherited)
Catalan quatre (inherited)
Cebuano kwatro (derived)
Corsican quattru (inherited)
Danish kvart (mention)
Spanish cuatro (inherited)
Spanish cuádriceps (mention)
Extremaduran cuatru (inherited)
Persian چهار (cognate)
French cadre (mention)
French quatre (inherited)
French carrefour (mention)
French quatuor (unadapted borrowing)
French quadrumane (mention)
Old French quatre (inherited)
Old French catre (inherited)
Old French quarrefor (mention)
Old French qatre (mention)
Friulian cuatri (inherited)
Galician catro (inherited)
Ancient Greek τέσσαρες (cognate)
Ancient Greek τέτταρες (cognate)
Indonesian kader (mention)
Istriot quatro (inherited)
Italian quattro (inherited)
Italian quaderno (mention)
Italian quadrato (mention)
Italian quadruplo (mention)
Italian carruggio (mention)
Kabuverdianu kuárta (derived)
Latin quadri- (mention)
Latin quadro (mention)
Latin quadrivium (affix)
Latin quadrans (mention)
Latin quadruplex (mention)
Latin quadratura (mention)
Latin quadrate (mention)
Latin quadra (mention)
Latin quadringenti (mention)