Meta is a Scandinavian, German, and Slovene short form of Margareta from English Margaret meaning “pearl” which comes from Ancient Greek margarítēs μαργᾰρῑ́της (pearl) which derives from an unknown origin, though it could be derived from an Indo-Iranian origin.
Meta (μετά) is also the name of a minor figure in Greek mythology, the first wife of Aegeus (the king of Athens and father of Theseus with a different woman). The name means “beyond” and derives from the same Greek prefix meaning “after” or “beyond” which derives from a PIE root word.
Meta is also a surname- first an Albanian surname whose meaning I couldn’t find, and it’s also a Japanese surname written with the kanji 米 (rice) + 田 “rice paddy, rice field” and written in hiragana as めた.
Origin: uncertain though possibly from an Indo-Iranian source; Proto-Indo-European
Meaning: a shorted form of Margareta “pearl”; also a Greek prefix “after” or “beyond”
Usage: German, Danish, Swedish, Slovene, Ancient Greek