Definition of "hollo"

And then to Apollo hollo, trees, hollo.

1609, “Everie Woman In Her Humor”, in A Collection Of Old English Plays, Vol. IV.‎

Presently up came the clerk; and when he saw his master, the parson, running after the three girls, he was greatly surprised, and said, "Hollo! hollo! your reverence! whither so fast!

1922, Jacob Grimm, Wilhelm Grimm, Grimm's Fairy Stories‎

And a good south wind sprung up behind; The Albatross did follow, And every day, for food or play, Came to the mariners' hollo!

1798, Samuel Taylor Coleridge, “Rime of the Ancient Mariner”, in Coleridge's Ancient Mariner and Select Poems‎

"I always add my hollo," said the yeoman, "when I see a good shot, or a gallant blow."

1819, Walter Scott, Ivanhoe‎

The old chief stepped to the entrance of the wigwam and made a peculiar noise between a whistle and a hollo, and in a few minutes there were hundreds of Indians there, both bucks and squaws.

1910, W.F. Drannan, Chief of Scouts‎

And Tom made another loutish salute, and cut the conference short by turning off the path and beginning to hollo after some trespassing cattle.

1899, J. S. LeFanu, Uncle Silas‎

Better hollo abstract ideas through the six-foot Alpine horn of prose.

1904, Edward Dowden, Robert Browning‎