Webster's Revised Unabridged Dictionary · 1913

Tidings

Tidings , noun, plural

[Old English tidinge, ti{not transcribed}inge, tidinde, from or influenced by Icelandic tī{not transcribed}indi; akin to Danish tidende, Swedish tidning, German zeung, Anglo-Saxon tīdan to happen, English betide, tide. See Tide, v. i. & n.]

Account of what has taken place, and was not before known; news.
I shall make my master glad with these tidings. — Shakespeare
Full well the busy whisper, circling round, Conveyed the dismal tidings when he frowned. — Goldsmith
Now near the tidings of our comfort is. — Shakespeare
Tidings to the contrary Are brought your eyes. — Shakespeare
Evil news rides post, while good news baits. — Milton
What tidings dost thou bring? — Addison

Although tidings is plural in form, it has been used also as a singular. By Shakespeare it was used indiscriminately as a singular or plural.