[UNDER-1 4 a + LINE v.1] trans. To furnish with an underlining; to form an underlining to. Also fig.

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1545.  Raynald, Byrth Mankynde, 8. This ryme vnderlyneth all the hole cauyte,… or amplytude of the belly.

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a. 1639.  Wotton, Reliq. (1651), 86. By a meer chance, in appearance, though under-lined with a providence, they had a full sight of the Queen Infanta.

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1834.  Wrangham, Homerics, 9. So quick his raft Ulysses made; And floor’d the deck, by spars combined, And with long battens under-lined.

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