Scar-fire or scarefire. An alarm of fire. One of the little pieces in Herrick’s “Hesperides” is entitled “The Scar-fire,” but the word sometimes was used, as in the text, for the fire itself. Fuller, in his “Worthies,” speaks of quenching scare-fires.
This text comes from a footnote on a diary entry in the 1893 edition edited by Henry B. Wheatley.