Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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Latin rectus
Proto-Indo-European *h₃reǵ- (root)
Proto-Indo-European *h₃reǵtós (derived)
Proto-Indo-European *h₃reǵ- (derived)
Latin regō (mention)

English rectangle (derived)
English rectitude (derived)
English rectum (mention)
English reckon (cognate)
English rectilinear (mention)
English recti- (mention)
English cyma recta (mention)
English pars recta (mention)
English rectus abdominis (derived)
English gyrus rectus (compound)
Catalan recte (borrowed)
Danish rektor (mention)
Spanish recto (borrowed)
French rectitude (derived)
Latin rectifico (mention)
Latin rectitudo (mention)
Latin rectangulus (mention)
Translingual R- (derived)
Portuguese reto (borrowed)