Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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Proto-Indo-European *kes-

→ English hards (derived)
→ English ciron (derived)
→ English Skeen (mention)
→ Czech kostrč (derived)
→ Greek ξαίνω (mention)
→ Ancient Greek ξυρόν (root)
→ Ancient Greek ξύω (root)
→ Ancient Greek ξόανον (root)
→ Ancient Greek ξέσις (root)
→ Ancient Greek ἐΰξοος (root)
→ Ancient Greek ξυστός (root)
→ Ancient Greek ξεστός (root)
→ Icelandic haddur (derived)
→ Cornish spethas (mention)
→ Latin sentis (mention)
→ Latin novacula (mention)
→ Latin saucius (mention)
→ Latin sentus (mention)
→ Lithuanian kasa (derived)
→ Latvian suka (mention)
→ Latvian skuja (mention)
→ Norwegian Bokmål Hallingdal (root)
→ Norwegian Bokmål Hallingdal (inherited)
→ Dutch zier (derived)
→ Old Prussian kexti (derived)
→ Portuguese castro (derived)
→ Russian чесать (root)
→ Old Irish cír (derived)
→ Albanian korr (inherited)
→ Old Armenian քոս (cognate)