in reference to solid-fuel rockets (1809) or matches (1839), a reference to English inventor Sir William Congreve (1772-1828), who learned the tactic of rocket warfare while serving in India. He was a descendant of the family of William Congreve the Restoration playwright (1670-1729), being probably his great-great-nephew.
congregational
Congregationalist
congress
congressional
congressman
Congreve
congruence
congruent
congruity
congruous
conic