regimen

dominatus – domination, mastery, rule, tyranny
formula – formula, physical beauty, principle, rule
imperium – authority, command, control, power to command, realm, rule, sovereignty
mos – custom, customs, inclination, manners habit, moris, rule, usage, will, wont
ordinatio – arrangment, government, order, regulation, rule
principatus – dominion, first place, pre, rule
regno – predominate, rule, to reign
regnum – authority, kingdom, realm, rule
regula – monastic rule, rule
sceptrum – authority, royal staff, rule

regina – queen
regio – region
regius – regal, royal
rebellis – rebellious, rebels
rebello – rebel, to wage war against
reboare – to resound like celestial thunder
recedentia – disappearance, distant, ebbing, far, retreat
recedo – depart, disappear, pass away, retire, retreat, to fall back, to go back, withdraw
recenseo – review, to recount
recepi – recede, retire, retreat, to go back

re·gi·men[1]