Meaning unknown. It was a rare name when British author Marie Corelli used it for the Norwegian heroine of her novel Thelma (1887). The name became popular around the end of the 19th century after the novel was published. It is sometimes claimed to derive from Greek θέλημα (thelema) meaning “will”, though this seems unlikely.
People with the name Lin have a deep inner desire to serve humanity and to give to others by sharing money, knowledge and experience, or creative and artistic ability.
People with the name Tuathla have a deep inner desire for travel and adventure, and want to set their own pace in life without being governed by tradition.
Modern Persian form of Avestan Vohu Manah meaning “good mind”. This was the name of a Zoroastrian god (one of the Amesha Spenta) associated with domestic animals. It is also the name of the eleventh month in the Iranian calendar.