Where does “rulesiest” come from?

rulesiest (English) comes from English rules, from English rule, from Middle English reule, from Old French reule, from Latin rēgula, from Latin -ula, from Proto-Indo-European -tlom, from Proto-Indo-European -trom — Derives agent nouns from verbs, denoting someone...

Ancestry of “rulesiest”, step by step

StepLanguageWordMeaning
1Englishrulesplural of rule; Third-person singular simple...
2EnglishruleA regulation, law, guideline; A regulating...
3Middle Englishreulelegal code, set of rules; moral code, principles;...
4Old Frenchreulerule; ruler; rule
5Latinrēgularule, bar
6Latin-ularegō + API → rēgula; tegō + API → tēgula;...
7Proto-Indo-European-tlomAlternative form of *-trom
8Proto-Indo-European-tromForms nouns denoting a tool or instrument
9Proto-Indo-European-tḗrDerives agent nouns from verbs, denoting someone...
Every word from Proto-Indo-European -tḗrEvery word from Latin -ulaEvery word from Latin rēgula