int., n., & v.
--int.
1. inciting dogs to the chase.
2 calling attention.
3 expressing surprise.
--n. the cry 'halloo'.
--v. (halloos, hallooed)
1. intr. cry 'halloo', esp. to dogs.
2 intr. shout to attract attention.
3 tr. urge on (dogs etc.) with shouts.
Etymology: perh. f. hallow pursue with shouts f. OF halloer (imit.)