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

→ English gymnasium (root)
→ English nude (root)
→ English naked (root)
→ English naked (derived)
→ English nudity (root)
→ English gymnastics (root)
→ English gymnast (root)
→ English pernoctation (root)
→ English pernoctation (mention)
→ Old English nacod (derived)
→ Old English nacian (derived)
→ Assamese নাঙঠ (inherited)
→ Persian برهنه (inherited)
→ Ancient Greek γυμνός (mention)
→ Ancient Greek ἀδήν (mention)
→ Ancient Greek νεβρός (derived)
→ Hindi नंगा (derived)
→ Hittite 𒉈𒆪𒈠𒀭𒍝 (inherited)
→ Armenian տկլոր (mention)
→ Ligurian nûo (mention)
→ Translingual Gymnogyps (derived)
→ Norwegian Bokmål actinium (root)
→ Norwegian Bokmål actinium (mention)
→ Old Norse nǫkkviðr (derived)
→ Sanskrit नाग (root)
→ Sanskrit नाग (inherited)
→ Sanskrit नग्न (inherited)
→ Old Armenian մերկ (mention)
→ Old Armenian լերկ (mention)