see: minuscule Usage: The adjective minuscule is etymologically related to minus, but associations with mini- have produced the spelling variant ~. This variant dates to the end of the 19th century, and it now occurs commonly in published writing, but it continues to be widely regarded as an error.
MINISCULE
Meaning of MINISCULE in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012