Structure
What are the elements that make up this word's structure?
Given my past with the word tutor and the Latinate agent suffix <-or>, I'm inclined to hypothesize my base in tutelage is
tute/ + or
tute + lage?
Agent suffixes indicate a person or a thing performing the action of the verb.
educator --> educate (verb)
teacher --> teach (verb)
But I've never seen
The entry for tutelage in Etymonline, or the Online Etymology Dictionary, states this word came to us around 1600, the Modern English period. It also says "with <-age>," which we are going to take as evidence of that suffix.
tutel + age
But what is past participle stem of the Latin verb tueri, "watch over," from which tutor is derived. The past participle stem refers to the fourth principal part of a Latin verb. To find the four parts of the Latin verb, I go to Lat-Dict:
tueor, tueri, tuitus
And here's where this gets a little hairy, so I'll try to walk us through.
You'll recall I said earlier that the past participle stem refers to the fourth principal part.
But there are only three parts here.
That's because this verb is a deponent verb. I won't get into the function of deponent verbs. What's important to know for orthographic understanding is that there are only three parts listed and the suffixes are a little different. The third part gives us the past participle stem. Fortunately, this suffix matches the standard suffix, so by removing the Latin suffix <-us>, that leaves us with
Which still doesn't give us
So I go back to the Etymonline entry for tutelage. I see that it says "variant" past participle stem....hmmm... The entry then directs us to the entry for tutor. That entry says that tutus is the other variant. And that gives us the base tutor. So is it:
tute + l + age?
When Etymonline leaves me wondering, I turn to Wiktionary.
The entry for tutela at Wiktionary tells me that the Latin tutela was built with a Latin element <-elae> that formed abstract nouns from verbs. We can remove the Latin genitive suffix <-ae> to arrive at:
tute/ + el + age
Another word with this element is clientele, which we received from French. We also have sequela, a medical doublet of sequel.