Fertility
Fertility was the condition whereby organisms (including humanoids) are capable of producing offspring. The lack of such an ability is known as infertility or sterility.
Many cultures throughout the Milky Way have rituals and symbolism pertaining to fertility. On Risa, the horga'hn is a symbol of fertility, and displaying a horga'hn to a Risian indicates that one seeks jamaharon. (DS9: "Let He Who Is Without Sin..."). In 2373, Neelix speculated that symbols observed in a cave on the Nechani homeworld may have pertained to fertility. (VOY: "Sacred Ground")