Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
Proto-Indo-European *mḗh₁n̥s

→ English month (inherited)
→ English moon (inherited)
→ English Moon (inherited)
→ English manilla (derived)
→ Avestan 𐬨𐬁𐬵 (derived)
→ Afrikaans maand (inherited)
→ Afrikaans maan (inherited)
→ Old English mona (derived)
→ Belarusian месяц (derived)
→ Belarusian Месяц (derived)
→ Bulgarian месец (inherited)
→ Bengali মাস (inherited)
→ Catalan mes (inherited)
→ Czech měsíc (derived)
→ Kashubian miesądz (inherited)
→ Old Church Slavonic мѣсѧць (derived)
→ Welsh mis (inherited)
→ Danish måned (inherited)
→ Danish måne (derived)
→ Lower Sorbian mjasec (derived)
→ Middle Dutch mane (derived)
→ Greek μήνας (inherited)
→ Spanish mes (inherited)
→ Persian ماه (inherited)
→ Faroese máni (inherited)
→ Faroese mánaður (derived)
→ French mois (inherited)
→ Old French almanach (cognate)
→ West Frisian moanne (inherited)
→ West Frisian moanne (derived)
→ Irish mí (inherited)
→ Scottish Gaelic mìos (derived)
→ Central Franconian Mond (inherited)
→ Ancient Greek μήν (inherited)
→ Ancient Greek Μήνη (derived)
→ Ancient Greek μείς (inherited)
→ Manx mee (inherited)
→ Hindi माह (derived)
→ Upper Sorbian měsac (inherited)
→ Icelandic mánuður (inherited)
→ Icelandic máni (derived)
→ Italian mese (inherited)
→ Northern Kurdish meh (inherited)
→ Latin mensis (inherited)