scared driver delight:- I bring to your attention, that the Amidah which you probably refer to as “Shemoneh Esrei” used to have 18 Benedictions, and despite addition of a 19th Benediction A.K.A. veLaMalshinim, still is known as Shemonei Esrei.
Ovinu Malkeinu used to have 37 stanzas, and more got added over the years.
I also refer you to Siddur Avodas Yisroel, as well as the Sefas Emes Sidur as well as Rodelheim Machor, whose Nusach still has 37 stanzas, which continues to be the Nussach recited @Yekkish Minyonim following Western European Nussach..