rack vb.:
1.
to stretch or strain beyond the
normal extent
Ado IV. i. 222
“we rack the
value,”
LLL. V. ii. 826
“your sins are
rack'd”
(=extended to their fullest),
Mer.V. I. i. 182
“my credit . . . shall
be rack'd . . . to the
uttermost.”
2.
(?) to strain
oneself, make exhausting efforts Cor. V. i. 16 (old edd.
“wrack'd”).
3.
to distort
Meas. IV. i. 66
“thousand escapes of wit
. . . rack thee in their
fancies!.”