[sev.en.teen] n [seventeen, adj., fr. ME seventene, fr. OE seofontene; akin to OE tien ten] (14c): one more than sixteen -- seventeen adj -- seventeen pron, pl in constr -- sev.en.teenth adj or n
SEVENTEEN
Meaning of SEVENTEEN in English
Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012