Obs. [f. TIDE sb. 7 + GATE sb.2] = TIDEWAY.
1557. W. Towrson, in Hakluyt, Voy. (1589), 113. Like vnto a streame or tyde gate.
1599. Nashe, Lenten Stuffe, 8. Now graueld vp, and the streame or tyde-gate turned another way.
1678. Phillips (ed. 4), Tidegate, in Navigation is where the Tide runs strongest.
1704. J. Harris, Lex. Techn., I. s.v. Tide, When the Tide runs very strong, they call it a Tide Gate.
1711. Sibbald, Descr. Shetland, 3. The Rousts and high tide-gates of the Sea about the Promontories and the Isles.
1867. Smyth, Sailors Word-bk.