Aletheia as a Baby Name. Meaning and Origin of Aletheia

What is the meaning of the name Aletheia ?

The baby name Aletheia is a Female name , 4 syllables long and is pronounced ah-LEH-thee-ah (Greek: /a.leˈθi.a/); uh-LEE-thee-uh (English: /əˈliːθiə/).

Aletheia is Greek in Origin.

From Ancient Greek ἀλήθεια (Alētheia), Aletheia means “truth,” literally “unconcealment”: a- “not” + lanthánō “to escape notice,” the root seen in Lethe, the river of forgetfulness. The word holds central weight in Greek philosophy (Parmenides, Plato, Aristotle) and in early Christian writings, where it names divine truth and sincerity. This semantic depth gives the name a quietly erudite, virtue-tinged character.

As a given name, it surfaced in learned circles of early modern England; the Anglicized form Alethea is well attested, notably Lady Alethea Howard (1606–1654). Usage flickered during the 19th‑century classical revival and has reappeared in contemporary Anglophone naming as a distinctive alternative to Verity or Thea. Variants and transliterations include Alethea, Alethia, Alithea, Alétheia, and Portuguese Aletéia; short forms Thea and Lettie are common. Related concept-names include Verity and True.