The star's name, TRAPPIST-1, reflects that it is the first star discovered by the TRAPPIST telescope to have transiting planets; the name is in honour of the Trappist Christian religious order in the Belgian region.
It is the first star. This is what the star's name reflects. This first star is discovered by the TRAPPIST telescope. This was to have transiting planets. The star's name is TRAPPIST-1. The name is in honour of the Trappist Christian religious order in the Belgian region.