The Collaborative International Dictionary of English v.0.48:

Semisavage \Sem`i*sav"age\ (s[e^]m`[i^]*s[a^]v"[asl]j), a.
   Half savage.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Semisavage \Sem"i*sav`age\, n.
   One who is half savage.
   [1913 Webster]