from
The Collaborative International Dictionary of English v.0.48
Seven \Sev"en\, a. [OE. seven, seoven, seofen, AS. seofon,
seofan, seofen; akin to D. zeven, OS., Goth., & OHG. sibun,
G. sieben, Icel. sjau, sj["o], Sw. sju, Dan. syv, Lith.
septyni, Russ. seme, W. saith, Gael. seachd, Ir. seacht, L.
septem, Gr. ???, Skr. saptan. [root]305. Cf. {Hebdomad},
{Heptagon}, {September}.]
One more than six; six and one added; as, seven days make one
week.
[1913 Webster]
{Seven sciences}. See the Note under {Science}, n., 4.
{Seven stars} (Astron.), the Pleiades.
{Seven wonders of the world}. See under {Wonders}.
{Seven-year apple} (Bot.), a rubiaceous shrub ({Genipa
clusiifolia}) growing in the West Indies; also, its edible
fruit.
{Seven-year vine} (Bot.), a tropical climbing plant
({Ipom[oe]a tuberosa}) related to the morning-glory.
[1913 Webster]