English
subendocardially
From sub- + endocardially.
Formed from sub- + endocardially
Proto-Indo-European *upó ‘up; from below’
Proto-Italic *supo ‘under’
Latin sub ‘under, beneath, below’
English sub-
Today it means
adv In a subendocardial manner or direction
Language periods are conventional ranges, not dates for this word.
Etymograph / subendocardially