two-line subtitle
A subtitle or caption written in two lines, often seen in traditional Japanese publications, signboards, or theatrical programs.
Kabuki playbills include two-line subtitles for the performances.
Compound of 角 (tsuno, 'horn' or 'corner') and 書き (kaki, 'writing'). The exact derivation is uncertain; the spelling is conventionally associated with the meaning of a two-line subtitle.