ETYMOLOGY
from Latin macilentus (lean),
from macies (leanness) + -lentus (-lent)
EXAMPLE
“…Þay þat haue strong vertuez, grete veynez, & brode habitude, not mych macillent, i. lene or megre…”
From: Grande Chirurgie,
Translated by Guy de Chauliac, a1425
Lexicophilia 