Noun
yajnopavita (plural yajnopavitas)
A sacred thread worn during the upanayana ritual.
Synonym: janeu
When Mool Shankar was eight years old, Yajnopavita Sanskara, or the investiture with thread of the "twice-born" were performed. Source: Internet
Puri, P. 133 Buddhism in Central Asia In this depiction, Shiva is portrayed with a sacred halo and a sacred thread ("Yajnopavita"). Source: Internet