Low-water

Chamber's Etymological of the English Language · 1895 · p. 309

lo'-waw'ter, n. the lowest point of the Loyal, loyal, adj faithful to one's sovereign: obedient true to a lover.—adv. Loy'ally.—n. Loy'alty. fOrig. faithful to law, Fr. — L. Icgahs, pertaining to the law—lex, Ugis, law.]