livelihood (n.) Look up livelihood at Dictionary.com
1610s, alteration of livelode "means of keeping alive" (c.1300), from Old English lifad "course of life," from lif "life" + lad "way, course" (see load). Similar formation in Old High German libleita. Spelling assimilated to words in -hood. Earlier livelihood was a different word, meaning "liveliness," from lively.