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 *deḱ-

→ English decorous (root)
→ English tail (derived)
→ English dignity (root)
→ English dignity (mention)
→ English decorate (root)
→ English decorum (root)
→ English deign (root)
→ English dainty (root)
→ English decent (derived)
→ English decor (root)
→ English pandect (root)
→ English pandect (derived)
→ English indecorous (root)
→ English -ty (inherited)
→ Old English tægl (derived)
→ Esperanto digno (root)
→ French décor (root)
→ Ancient Greek δόξα (mention)
→ Ancient Greek δοκέω (cognate)
→ Ancient Greek δέχομαι (derived)
→ Ancient Greek δεῖπνον (derived)
→ Ido docar (derived)
→ Italian degno (mention)
→ Italian decoro (root)
→ Italian decente (root)
→ Italian doga (mention)
→ Latin doceo (root)
→ Latin doceo (derived)
→ Latin disco (root)
→ Latin disco (mention)
→ Latin dignus (root)
→ Latin dignus (mention)
→ Latin dogma (cognate)
→ Latin decor (root)
→ Latin decus (root)
→ Latin decus (mention)
→ Latin digno (root)
→ Latin doga (mention)
→ Latin decet (root)
→ Latin decet (derived)
→ Latin decorus (root)
→ Latin dogmatizo (cognate)
→ Latin decibilis (root)
→ Ligurian indignaçión (root)
→ Ligurian indegnitæ (root)
→ Ligurian indégno (root)
→ Latvian desa (mention)
→ Latvian desa (mention)
→ Portuguese digno (mention)
→ Sardinian dechente (root)
→ Sardinian deghente (root)
→ Sardinian dechere (derived)
→ Sardinian deghere (derived)