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

→ English un- (inherited)
→ English Hades (derived)
→ English irrefragable (root)
→ English anuran (derived)
→ English inenarrable (root)
→ English anhypostasia (derived)
→ Old English un- (inherited)
→ Middle Armenian ան- (inherited)
→ Welsh an- (inherited)
→ Welsh agor (inherited)
→ Welsh allwedd (mention)
→ German un- (inherited)
→ Middle Dutch on- (inherited)
→ Greek α- (derived)
→ Faroese ó- (inherited)
→ Irish an- (inherited)
→ Irish an- (inherited)
→ Irish éa- (inherited)
→ Irish anúra (derived)
→ Gothic 𐌿𐌽- (inherited)
→ Ancient Greek ᾍδης (derived)
→ Ancient Greek ἀ- (inherited)
→ Ancient Greek ἀν- (inherited)
→ Ancient Greek νωδός (mention)
→ Ancient Greek νη- (inherited)
→ Ancient Greek να- (inherited)
→ Ancient Greek νω- (inherited)
→ Ancient Greek νωθρός (inherited)
→ Ancient Greek ἄσπετος (mention)
→ Armenian ան- (inherited)
→ Indonesian a- (derived)
→ Icelandic ó- (inherited)
→ Italian in- (derived)
→ Latin in- (inherited)
→ Latin infirmus (inherited)
→ Limburgish ón- (inherited)
→ Norwegian Bokmål a- (derived)
→ Norwegian Bokmål a- (derived)
→ Norwegian Bokmål atom (derived)
→ Norwegian Bokmål abasi (derived)
→ Norwegian Bokmål u- (inherited)
→ Norwegian Bokmål a-bombe (derived)
→ Norwegian Bokmål amenoré (derived)
→ Norwegian Bokmål amenore (derived)
→ Norwegian Bokmål uforsonlig (inherited)
→ Norwegian Bokmål uforsonlighet (inherited)