IPA: //prɛɡˈnɛnəloʊn//
KK: /prɛgˈnɛnəloʊn/
A substance in the body that helps produce various hormones, including progesterone and other steroid hormones.
Pregnenolone is often referred to as the mother hormone because it is a precursor to many other hormones.
Pregnenolone is formed from "pre-" (meaning before) and "gnen" (from the Greek "gignesthai", meaning to be born or to come into being) and "-olone" (a suffix used in chemistry to denote a steroid). The word refers to a steroid hormone that is a precursor to other hormones, thus it is something that comes before the formation of other hormones.
Think of 'before' ('pre-') and 'coming into being' ('gnen') to remember that pregnenolone is a precursor hormone that leads to the creation of other hormones.
No commonly confused words.