Da-Silva is not a popular first name. It is more often used as a girl (female) name.
First names and their meaning - Page 6912
Davila
Davila is not a popular first name.
Diaby
Diaby is not a popular first name.
Dickinson
Meaning: Rich ruler, Powerful. 
Dickinson is a surname and, rarely, a given name. 
Divyendu
Origin: Hebrew. 
Meaning: Moon. 
Divyendu is not a popular first name. It is more often used as a boy (male) name. 
Doumit
Doumit is not a popular first name.
Drilona
Drilona is not a popular first name. It is more often used as a girl (female) name.
Dyce
Dyce is not a popular first name. It is more often used as a boy (male) name.
Eaman
Origin: Scottish-Gaelic. 
Meaning: Earnest. 
Eaman is not a popular first name. It is more often used as a boy (male) name. 
Eang
Eang is not a popular first name.