v. 1 (cause to) lose lustre. 2 impair (one’s reputation etc.). n. 1 loss of lustre, esp. as a film on a metal’s surface. 2 blemish, stain. [French ternir from terne dark]
v. 1 (cause to) lose lustre. 2 impair (one’s reputation etc.). n. 1 loss of lustre, esp. as a film on a metal’s surface. 2 blemish, stain. [French ternir from terne dark]