I happened to find that definition of the word, ‘regimen’ has the meaning of ‘governing word’ such as prepositions (sic from Reader’s English Japanese Dictionary) besides a popular notion of ‘a set of rules about food and exercise or medical treatment to stay healthy, or improve one’s health.’
What does ‘regimen’ as a grammatical term mean? What are they? How do they function? Are they different from simple modifiers such as adjectives and subordinate clauses?
The Oxford English Dictionary’s third definition of regimen is:
Grammar. The relation of a word, clause, etc. to the word that governs
it. Also: a case, word, or phrase so governed by another word. Now
I have never come across it with this meaning myself. Since the OED describes it as rare it is probably best avoided.