DOUG'S WORD OF THE WEEK

steenth / steenth / adjective : 1. Latest in an indefinitely long sequence.
2. One sixteenth.

Notes & Etymology: An alteration of the word sixteenth. The formation of the word "steenth" from "sixteenth" took place through a process called aphesis (from Greek, literally "a letting go"). Aphesis is when an unstressed sound from the beginning of a word get lost over time. Some other examples are:
"cute" from "acute"
"'tis" from "it is"
"gypsy" from "Egyptian", from the belief that Gypsies came from Egypt (they actually came from India).

Usage: “And for the steenth time I wondered why he hadn't phoned me. ”

Robert A. Heinlein; The Cat Who Walks Through Walls; Putnam Publishing; 1985