combining form meaning "ten more than," from O.E.
-tene, -tiene, from P.Gmc.
*tekhuniz (cf. O.S.
-tein, Du.
-tien, O.H.G.
-zehan, Ger.
-zehn, Goth.
-taihun), an inflected form of the root of
ten; cognate with L.
-decim (cf. It.
-dici, Sp.
-ce, Fr.
-ze). The combining form of ordinal numbers,
-teenth, developed from O.E.
-teoða, -teoðe (W.Saxon),
teogoða (Anglian) "tenth."