Where does “transmural” come from?

Transmural comes from English transmural, from French transmural, from Latin transmuralis, from Latin trans- and murus meaning wall, ultimately from Proto-Indo-European mei-.

transmural (English): beyond a city wall; passing through the wall of...

Definitions

beyond a city wall; passing through the wall of...

Ancestry of “transmural”, step by step

Step	Language	Word	Meaning
1	English	mural	A large painting, usually drawn on a wall; Of or...
2	French	mural	mural
3	Old French	mural	wall; especially a large one
4	Latin	muralis	wall
5	Latin	mūrus	wall, city wall(s), (usually of a city, as opposed to pariēs)
6	Old Latin	moerus	—
7	Proto-Indo-European	mēy-	soft, tender, dear

Words derived from “transmural”

nontransmural
transmurally

Every word from Proto-Indo-European mēy- →Every word from Old Latin moerus →Every word from Latin mūrus →