Tyre = "a rock"
a city in Galilee (see map)
derivation: of Hebrew origin (06865)
http://bible.crosswalk.com/Lexicons/Greek/grk.cgi?number=5184&version=kjv

(06865)
Tyre or Tyrus = "a rock"
derivation: the same as (06864)
http://bible.crosswalk.com/Lexicons/Hebrew/heb.cgi?number=6865&version=kjv

(06864)
1] flint, hard pebble
   1.a] used as a knife
derivation: from (06696)
http://bible.crosswalk.com/Lexicons/Hebrew/heb.cgi?number=6864&version=kjv

(06696)
1] to bind, besiege, confine, cramp
   1.a] (Qal)
       1.a] to confine, secure
       1.b] to shut in, besiege
       1.c] to shut up, enclose
2] (Qal) to show hostility to, be an adversary, treat as foe
3] (Qal) to form, fashion, delineate
derivation: a primitive root
http://bible.crosswalk.com/Lexicons/Hebrew/heb.cgi?number=6696&version=kjv