The Collaborative International Dictionary
Kidde \Kid"de\,
imp. of Kythe. [Obs.]
--Chaucer.
Kythe \Kythe\, Kithe \Kithe\ (k[imac][th]), v. t. [imp. Kydde, Kidde (k[i^]d"de); p. p. Kythed, Kid; p. pr. & vb. n. Kything.] [OE. kythen, kithen, cu[eth]en, to make known, AS. c[=y][eth]an, fr. c[=u][eth] known. [root]45. See Uncouth, Can to be able, and cf. Kith.] To make known; to manifest; to show; to declare. [Obs. or Scot.]
For gentle hearte kytheth gentilesse.
--Chaucer.
Wikipedia
Kidde is a brand and division of United Technologies Corporation. It is a group of businesses that manufactures and distributes fire detection and suppression equipment, as well as Smoke and CO Alarm units.
Usage examples of "kidde".
By and by the Horsekeeper, to whom the charge of me was committed, brought forth all his substance, and laded me and other Horses withall, and so departed thence : we bare women, children, pullets, sparrowes, kiddes, whelpes, and other things which were not able to keepe pace with us, and that which I bare upon my backe, although it was a mighty burthen, yet seemed it very light because I was driven away from him that most terribly had appointed to kill me.
By and by the Horsekeeper, to whom the charge of me was committed, brought forth all his substance, and laded me and other Horses withall, and so departed thence : we bare women, children, pullets, sparrowes, kiddes, whelpes, and other things which were not able to keepe pace with us, and that which I bare upon my backe, although it was a mighty burthen, yet seemed it very light because I was driven away from him that most terribly had appointed to kill me.