rare. [Evolved from the advb. phrase ‘all my (his, etc.) life long’: see LONG adv.] The duration of a life; a lifetime.
a. 1836. R. H. Froude, Mem. (1849), 47. For the making of a single rich man, we make a thousand whose life-long is one flood-tide of misery.
1856. Lever, Martins of Cro’ M., 119. A spot wherein a student might have passed a lifelong.
