SITHENCE; SITHENS
Sith"ence, Sith"ens, adv. & conj.

Defn: Since. See Sith, and Sithen. [Obs.] Piers Plowman.

SITHTHEN
Sith"then, adv. & conj.

Defn: See Sithen. [Obs.]
Siththen that the world began. Chaucer.

SITOLOGY
Si*tol"o*gy, n. Etym: [Gr. -logy.]

Defn: A treatise on the regulation of the diet; dietetics. [Written also sitiology.]

SITOPHOBIA
Si`to*pho"bi*a, n. Etym: [NL., fr. Gr. (Med.)

Defn: A version to food; refusal to take nourishment. [Written also sitiophobia.]

SITTEN
Sit"ten, obs.

Defn: p. p. of Sit, for sat.