r
1
e
1
t
1
r
1
o
1
p
3
e
1
r
1
i
1
t
1
o
1
n
1
e
1
a
1
l
1
15 letters ·
17 points in Scrabble
Meaning
originEtymology tree Proto-Italic *wre- Proto-Italic *wretrō Latin retrōder. English retro- English peritoneal English retroperitoneal From retro- + peritoneal.