I. preposition Etymology: Middle English twene, short for betwene Date: 13th century be~ , II. noun Etymology: blend of be~ and 2teen Date: 1967 preteen
TWEEN
Meaning of TWEEN in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012