to accompany a person (on a journey)

care for, keep up

to keep or continue (something) at a certain level; to keep (a machine, building etc) in good repair or working order

care for, keep up

to make an effort to continue with, do, (especially difficult or tiring)

keep at; work hard

extend, draw out

extend, draw out

to keep (a person, thing) from falling or sinking; to keep (a person, health etc) strong; to keep (something) active, existing etc for a long period

keep up, maintain