"Form of Tiara"
The name Tiera is commonly a female name from the "Latin" origin.
Tiera is a modern American respelling of Tiara, the word for an ornamental jewelled headdress worn as a crown. The spelling is phonetic, with the -ie- standing in for the -ia- of Tiara. The same spelling also occurs as a variant of Tierra, Spanish for earth, so the two source names are not always distinguishable in birth records.
Tiara means "Jewelled crown.".
The pronunciation of Tiera is tee-AIR-uh.