Glyniss, a unique and melodic name of Welsh origin, is derived from the Welsh word 'glyn', meaning 'valley'. It has gained popularity as a feminine given name in recent years due to its distinctive sound and spelling. The name Glyniss has been used sparingly throughout history but has seen a slight increase in usage since the late 20th century, making it both rare and intriguing.
"Glyniss was quite popular in 1963 with six births recorded that year."