Miresua is an imaginary, artificial, constructed language; a conlang. These words are not randomly generated. Miresua is an eclectic alphabetic mix of Basque and Finnish, two unrelated European languages.
opakale = teacher (noun) (Some things Google found for "opakale": a rare term; user name; similar ho'opakele means to rescue in Hawaiian; similar Opakal is a German brand or type of paper; Opakelle is the name of a place in Gabon)
Word derivation for "teacher" :
Basque = irakasle, Finnish = opettaja
Miresua = opakale
This is a new word. At 7 letters long, it's one letter shorter than the Basque and the Finnish words, but that's something I allow.
The word teacher doesn't occur in Alice's Adventures in Wonderland or Through the Looking-glass.