Quick answer
Eulália is a girl name meaning "sweetly-speaking".
Pronunciation: Spanish /eu̯.ˈla.lja/; English /ju.ˈleɪ.li.ə/.
Meaning and history
This name is derived from Greek εὔλαλος (eulalos) meaning "sweetly-speaking", itself from εὖ ( eu ) meaning "good" and λαλέω ( laleo ) meaning "to talk". This was the name of an early 4th-century saint and martyr from Mérida in Spain. Another martyr by this name, living at the same time, is a patron saint of Barcelona. These two saints might be the same person.
Notes and context
Usage: spanish, italian, polish, english, ancient greek | Ancient Greek: Εὐλαλία