rĕgĭmentum

i, n.

rego

I. rule, government (post-class. for regimen); usually in plur., Dig. 1, 11, 1; Amm. 25, 9, 7; 28, 1, 7. —In sing., Fest. s. v. regimen, p. 278 Müll.
Lewis & Short
A Latin Dictionary, 1879
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