Simple past tense and past participle of hallo.(verb)
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Use "halloed" in a sentence
"I shouted something incoherent, about wanting to be first in at the death, and as they halloed encouragement after me I put my pony to a trot, hanging on grimly, and set off down the road."
"If everybody knows that the girl is called “Beloved” then the word Beloved merely needs to be halloed in order to summon her."
"“Oh,” said Tom, “you are an ugly fellow to be sure!” and he began making faces at him; and put his nose close to him, and halloed at him, like a very rude boy."