Earth or land; possibly a variant of Tara
Teira is a rare name with multiple potential roots. It is often considered a modern variant of the Latin 'Terra', meaning earth, or a phonetic variation of the Gaelic 'Tara', referring to a high place or hill. In some contexts, it is used as a creative spelling of the Greek name Thera.
Less common today
Teira isn't in the latest US Top 1000. It last peaked at #3,602 in 1990.
US births per 5-year period, 1990βpresent (SSA data).