Answer:

orth

Answer	Crossword Clue
ORTH	Traditionalist: Abbr.
ORTH	"Correct" starter
ORTH	Of the Eastern Ch.

ORTH	"Right" starter
ORTH	Prefix with optic
ORTH	Surg. specialty
ORTH	Sports MD's specialty
ORTH	Like some Jews: Abbr.
ORTH	Like many churches: Abbr.
ORTH	Surg. branch
ORTH	Kin of rect-

ORTH	Straight (prefix)
ORTH	Prefix meaning "straight"
ORTH	"Straight" word form
ORTH	Word form for "right"
ORTH	Word form for "straight"
ORTH	Bone M.D.'s branch
ORTH	Right: Comb. form.
ORTH	Straight: Comb. form.

ORTH	Correct: Comb. form.
ORTH	Correct: Prefix.
ORTH	Straight: Prefix.
ORTH	Straight: Prefix
ORTH	Straight: Comb. form
ORTH	Correct: Comb. form
ORTH	Of the Gr. Church
ORTH	Upright: Comb. form

ORTH	Former Met tenor
ORTH	Conventional: Abbr.
ORTH	Vertical: Prefix
ORTH	Maureen ... ("Vanity Fair" writer who's Tim Russert's wife)
ORTH	Correct: prefix
ORTH	Prefix meaning straight
ORTH	Straight: prefix
ORTH	Like some Judaism: Abbr.

ORTH	Straight, in combinations