To proceed; to make progress, physically or figuratively.
To see that (a person) is continually supplied with something, or that they can progress or carry on.
To continue functioning.
To strive, or to make efforts, with a twisting, or with contortions of the body.
To strive, to labour in difficulty, to fight (for or against), to contend.
A contortion of the body in an attempt to escape or to perform a difficult task.
Strife, contention, great effort.