Where does “extraterrene” come from?

extraterrene (English) comes from English terrene, from French terrine, from French -ine, from French -é, from Middle French -é, from Old French -é, from Latin -a, from Proto-Italic -ā.

Ancestry of “extraterrene”, step by step

extraterrene traces back through two separate lines of ancestry.

via English terrene

StepLanguageWordMeaning
1EnglishterrenePertaining to the earth; earthly, terrestrial,...
2Frenchterrineterrine dish
3French-inefeminine singular of -in; female equivalent of...
4Frenchpast participle root verb suffix of regular -er...
5Middle Frenchpast participle root verb suffix of regular; -ed, -en, -n
6Old Frenchused to form past participles of regular -er...
7Latin-asuffixed to the roots of verbs, forms agent...
8Proto-ItalicForms masculine agent nouns from prefixed or compounded bases
9Proto-Indo-European-éh₂

via English extra

StepLanguageWordMeaning
1EnglishextraBeyond what is due, usual, expected, or...
2EnglishextraordinaryNot ordinary; exceptional; unusual; Remarkably...
3Latinextraordināriusextraordinary
4Latinōrdinem
5Middle Low Germanorden
6Latinōrdināre
7Latinōrdōa methodical series, arrangement, or order; regular line, row, or series
8Proto-Italicored(h)-to arrange
Every word from Proto-Indo-European -éh₂Every word from French -ineEvery word from Latin -a
extraterrene — Etymology, Origin & Word History | Etymology Explorer