Yumnaks are the sub-clans of these seven major Salai, formed by the collection of different Yumnaks. Yumnaks inhabited specific areas and formed collectives. Later, these family members migrated to different areas, dispersing their Yumnaks.[7]
From ancient immemorial time,[when?] based on Meitei custom, naming system differs between males and females.
Commonly, in both the genders the person's Yumnak is used as a prefix to their name.[8] Keeping their respective names in the middle. The suffix name part is the one differing from males to females.
In females, the suffix name part is made either by the gender identification or marital status identification like "Chanu". After getting married, the females changed their suffix part to "Leima", adding the term "Ningol" just after her paternal surname and by adding "Ongbi" after her husband's surname completes her full name.
Examples :
A female Meitei having the name Leishna with Khaidem as her paternal Yumnak will have her full name, before getting married, as per the Meitei custom as,
Khaidem Leishna Chanu
After getting married, assuming, she married Narumbam Sanathoi Angomcha, noting that Narumbam is her husband's surname, Sanathoi is her husband's name and Angom is her husband's Salai/Clan name. Then, her full name as per the Meitei custom will be changed as,
Khaidem Ningol Narumbam Ongbi Leishna Leima
NOTE : The females don't carry their Salai/Clan name because the Salai/Clan system is a patrilineality one.[9]
In males, the suffix is made either by the name of their respective Salai or gender identification like "Meitei/Meetei" for males. And sometimes by adding "cha" to their respective Salai or Clan name. "Cha" meaning "child".
Examples: A male Meitei having the name Ahenba with 'sougrakpamasYumnak, and noting that 'sougrakpam surname belongs to Mangang clan, will have his full name as per the Meitei custom as,
Sougrakpam Ahenba Mangang or
Sougrankpam Ahenba Meitei or
Sougrakpam Ahenba Meetei or
Sougrakpam Ahenba Mangangcha
Through these Yumnaks, the genealogy of Meitei can be traced.