Source : Webster's Revised Unabridged Dictionary (1913)

Roam \Roam\, v. i. [imp. & p. p. {Roamed}; p. pr. & vb. n.
   {Roaming}.] [OE. romen, ramen; cf. AS. [=a]r?man to raise,
   rise, D. ramen to hit, plan, aim, OS. r?m?n to strive after,
   OHG. r[=a]men. But the word was probably influenced by Rome;
   cf. OF. romier a pilgrim, originally, a pilgrim going to
   Rome, It. romeo, Sp. romero. Cf. {Ramble}.]
   To go from place to place without any certain purpose or
   direction; to rove; to wander.

         He roameth to the carpenter's house.     --Chaucer.

         Daphne roaming through a thorny wood.    --Shak.

   Syn: To wander; rove; range; stroll; ramble.

Roam \Roam\, v. t.
   To range or wander over.

         And now wild beasts came forth the woods to roam.
                                                  --Milton.

Roam \Roam\, n.
   The act of roaming; a wandering; a ramble; as, he began his
   roam o'er hill amd dale. --Milton.

Source : WordNet®

roam
     v : move about aimlessly or without any destination, often in
         search of food or employment; "The gypsies roamed the
         woods"; "roving vagabonds"; "the wandering Jew"; "The
         cattle roam across the prairie"; "the laborers drift from
         one town to the next"; "They rolled from town to town"
         [syn: {roll}, {wander}, {swan}, {stray}, {tramp}, {cast},
          {ramble}, {rove}, {range}, {drift}, {vagabond}]