Hans Redlich points out that Consternation is an inversion of Tristan's Honor.

Motive Labels
“Consternation” – (Lavignac, p. 307)
"Marke” – (Kufferath), (Windsperger, p. 44), (Kobbé, p. 128), (Pfohl, p. 223), and (Hight, p. 281)

Consternation – Order of occurrence by Act and Scene
Act II: Scene 3
Act III: Scene 3