From the large settlement
A variant of the Welsh name Trevor, it originally served as a habitational surname. It is derived from the Welsh elements 'tref' meaning settlement or homestead and 'mawr' meaning large.
Less common today
Trevar isn't in the latest US Top 1000. It last peaked at #3,069 in 1995.
US births per 5-year period, 1990βpresent (SSA data).