heart in one's mouth, have one's

Be extremely frightened or anxious, as in When the plane was about to take off, my heart was in my mouth. This usage alludes to the heart beating so violently that it appears to leap upward. [Mid-1500s]

Common Names:

Name	Pronounced	Usage
Nika (2)	-	Slovene, Croatian
Izabella	ee-zah-BEL-lah (Polish)	Hungarian, Polish
Kenith	KEN-ith	English (Rare)
Nephthys	-	Egyptian Mythology
Mercer	['mə:sə]
Silvijo	-	Croatian