Eustacia, derived from Latin origins, means 'fruitful' or 'bearing good fruit'. It is a unique and elegant name, often associated with the works of Thomas Hardy's 'The Return of the Native', where Eustacia Vye is a prominent character.
"Eustacia has seen fluctuations in its popularity over the years, with a peak of 15 births in 1971 and a low of 5 births in multiple years between 1933 and 2000."