ἐν τῷ κόσμῳ ἦν, καὶ ὁ κόσμος δι᾽ αὐτοῦ ἐγένετο, καὶ ὁ κόσμος αὐτὸν οὐκ ἔγνω.

1. ἐν
   in
2. τῷ
   the
   to the
3. κόσμῳ
   world
4. ἦν
   was
5.  
   ,
    
6. καὶ
   and
7. ὁ
   the
8. κόσμος
   world
9. δι᾽
   through
10. αὐτοῦ
    his
11. ἐγένετο
    it happened
    became, came into existence
12.  
    ,
     
13. καὶ
    and
14. ὁ
    the
15. κόσμος
    world
16. αὐτὸν
    him
17. οὐκ
    not
18. ἔγνω
    knew
19.  
    .
     

He was in the world, and the world came into existence through him, and the world did not know him.