[six.teen] n [ME sixtene, fr. OE sixtyne, adj., fr. six six + -tyne (akin to OE tien ten)--more at ten] (bef. 12c): one more than fifteen -- sixteen adj -- sixteen pron, pl in constr -- six.teenth adj or n
SIXTEEN
Meaning of SIXTEEN in English
Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012