No, your mother's first cousin is your first cousin once removed. Her second cousin is your second cousin once removed. Your mother's sister is your aunt.
your great aunt.
You are their aunt or aunt by marriage.
Your mother's aunt's son is her first cousin and your first cousin, once removed.
Your aunt's daughter would be your cousin. If you are related to your aunt by marriage and not blood, then her daughter could be considered your step-cousin.
Only if they have children.
The relation of the mother;s sister to daughter is niece-aunts.
Mothers sister is aunt and son is cousin so daughter wouldn't that be a niece
The name given to the son of your aunt is first cousin or simply cousin.
Mothers sister is aunt and son is cousin so daughter wouldn't that be a niece
Aunt in law sister then be either. You Aunt by marriage and daughter be you first cousin. other Aunt in and daughter be cousin in law or Aunt in law is you spouse Aunt and there four whould be co Aunt in law and cousin whould be co cousin in law.
Your aunt's daughter is your first cousin and herdaughter is your first cousin once removed.
The aunt of your first cousin's child is your first cousin's sister, who is also your first cousin.