Where does “extramembraneous” come from?

extramembraneous (English) comes from English membraneous, from Middle French membraneux, from Latin membraneus, from Latin membrāna, from Latin membrum, from Proto-Italic memzrom, from Proto-Indo-European mḗms, from Proto-Indo-European mems-.

Ancestry of “extramembraneous”, step by step

extramembraneous traces back through two separate lines of ancestry.

via English membraneous

StepLanguageWordMeaning
1EnglishmembraneousAlternative form of membranous
2Middle Frenchmembraneux
3Latinmembraneusof parchment
4Latinmembrānathe skin or membrane that covers parts of the body; especially the skin or slough of snakes
5Latinmembrumlimb of the body; member; the penis; a portion,...
6Proto-Italicmemzrom
7Proto-Indo-Europeanmḗmsflesh, meat
8Proto-Indo-Europeanmems-flesh, meat
9Proto-Indo-Europeanme-ms-
10Proto-Indo-Europeanmes-

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 mes-Every word from Proto-Indo-European me-ms-Every word from Proto-Indo-European mems-