-on

-an is a suffix in various Indo-European languages .

Latin suffix

-anus / -ana is a suffix in the Latin language and denotes an origin

• in adjectives: montanus, urbanus

Tribes

-an is an ending in names of ethnic groups

• Alans , Roxolans , Borans (Iranian origin)
• Pomoranen , Ruganen, Stodoranen , Ukranen ( list of Slavic tribes )

Personal names

- an is a suffix in some personal names

• Aryan , Boran , Roxana (Persian)
• Arianus , Diocletianus (Diocletian), Traianus (Trajan) (Roman)
• Hraban
• Bojan, Dragan , Milan , Stojan , Zlatan (Serbian)

chemistry

The alkanes end in -an.

Differentiation to other final syllables

The ending -an is differentiated in the word formation from the final syllables -stan from Persian , -man (from mania ), and -phan (from phainesthai ) from Greek , also from -ban , -han , among others in the Arabic language area.