Rally
is re-alligo, to bind together again. (French rallier.) In Spenser it is spelt re-allie—
“Before they could new consels re-allie.”
“Yes, weʹll rally round the flag, boys,
Weʹll rally once again.”
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Entry taken from
Dictionary of Phrase and Fable,
edited by the Rev. E. Cobham Brewer, LL.D. and revised in 1895.