His throaty voice made the song sound particularly moving.

throaty 是由名词 throat（喉咙）加上后缀 -y 构成的形容词。throat 指"喉咙"，-y 后缀表示"具有...特征的"，所以 throaty 意思是"喉咙发出的、沙哑的"，用来形容声音低沉而富有质感。