English
forerule
From fore- + rule.
Proto-Indo-European *per- ‘before, formerly’
Proto-Germanic *fura- ‘before, in front of, for’
Proto-West Germanic *forē- ‘before, in front of, fore-, pre-’
English fore-
Proto-Indo-European *h₃reǵ- ‘to straighten’
…
Latin regō ‘to keep straight’
Latin regula ‘straight stick’
Old French riule
Middle English reule
English rule
Today it means
verb To rule beforehand or ahead of time
Language periods are conventional ranges, not dates for this word.
Etymograph / forerule