intransitive. To continue in life; to be alive for a given period; to survive (as opposed to to die). Also with †over and in extended use.

To maintain or support oneself, now esp. at a minimal level; to live on (also upon) food or money, or by… intransitive. Also figurative.

To make great efforts in spite of difficulties; to contend resolutely with (a task, burden); to strive to do something difficult. †Also const. at…

intransitive. U.S. With on: to depend on for a livelihood, live on. Obsolete. rare.