MrsPenfold's list "Faves!" of 2 great name ideas: Halcyon - Calix!

Faves!

Heaven, Peace, Serenity: parents seem especially attracted to word names that signal paradise, but Halcyon sounds quite feminine, and might conjure up the sleeping pill Halcion. 

Halcyon

Calix is once-obscure name that is starting to see some use in the US, where 62 baby boys were named Calix in 2024. An indirect influence is the actress Calista Flockhart, who introduced Americans to the female version of this attractive Greek name to prominence.
 
Calix derives from the Latin word for chalice, calyx, which in turn came from the Ancient Greek word kálux, meaning "husk" or "pod." It is also considered a diminutive of Calixtus, a variation of the Late Roman name Callistus meaning "most beautiful." Calyx can also be spelled Calyx, as in the funnel or chalice-shaped part of a flower.