Definition of calefactive:
(adj) :
formed by gathering or collecting; gathered into a mass, sum, or body; congregated or aggregated; as, the collective body of a nation; deducing consequences; reasoning; inferring
"local is his throne . . . to fix a point, A central point, collective of his sons. -Young."
(n) :
a
farm owned by a
collection of people; a collective noun or name