Seig is not a popular first name.
First names and their meaning - Page 8714
Seito
Meaning: Star and sake dipper. 
Seito is not a popular first name. It is more often used as a boy (male) name. 
Selmon
Selmon is not a popular first name. It is more often used as a boy (male) name.
Semul
Semul is not a popular first name.
Serian
Serian is not a popular first name.
Sewing
Sewing is not a popular first name.
Shappy
Shappy is not a popular first name.
Sharum
Sharum is not a popular first name.
Shasti
Meaning: Goddess of childbirth. 
Shasti is not a popular first name. It is more often used as a girl (female) name. 
Shemida
Shemida is not a popular first name. It is more often used as a boy (male) name.