INSINEW
Source: 566, 567
insinew. Insinew, v.t. to strengthen, harden, confirm
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In‐sin″ew (?), v. t. [imp. & p. p. Insinewed (?); p. pr. & vb. n. Insinewing.] To strengthen, as with sinews; to invigorate. All members of our cause, . . . That are insinewed to this action. Shak.