Quick answer
Euthalia is a girl name meaning "flower, bloom".
Meaning and history
The name means "flower, bloom" from the Greek word εὐθάλεια (euthaleia), itself derived from εὖ ( eu ) meaning "good" and θάλλω ( thallo ) meaning "to blossom". This name was borne by a 3rd-century saint and martyr from Sicily.
Notes and context
Usage: late greek | Ancient Greek: Εὐθαλία