noun Date: 1893 a punctuation mark = used in place of a hyphen at the end of a line to indicate that the word so divided is normally hyphenated
DOUBLE HYPHEN
Meaning of DOUBLE HYPHEN in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012