dontur.+la.  tonare,  to  thunder,  Skt.  tan,
to  sound,  p.  We  further  find  A.  S.  tonian,
to  thunder,  which  points  to  loss  of  initial
s,  appearing  in  Skt.  stan,  to  sound,  thunder,
sigh,  stanita,  thunder,  and  in  E.  stun.
rySTAN.)

thursday.  (E. ;  confused  with  Scand.)
Thur  is  a  corruption  of  M.  E.  thuner,
thunder,  by  confusion  with  Thor,  which
had  the  same  sense.  M.  E.  purs-day,  pors-
day.  A.  S.  punres  dag,  Thursday.  —  A.  S.
punres,  gen.  of  punor,  thunder ;  dag,  day.
TIC

Confused  with  Icel.  pdrsdagr,  Thuisday;
from  pSrs,  gen.  of  pSrr,  Thor,  and  dagr,  a
day.  So  also  Du.  Donderdag,  Swed.  Dan.
Torsdag,  G.  Donnerstag.
Thurible,  a  censer.  (L.-Gk.)  English
from  L.  thuribulum,  turibulum,  a  vessel
for  holding  incense. —  L.  thuri-,  turi~,  crude
form  of  thus,  tus,  frankincense ;  with  suffix
-bulum  (as  mfundi-bulum,  from  fundere).
L.  thus  is  borrowed  from  Gk.  Ovos,  incense.
—  Gk.  66-uv,  to  burn  a  sacrifice.  Allied
to  Fume.    0/DHU.)   See  Thyme.
Thursday ;  see  Thunder.
Thus ;  see  That.
Thwack,  Whack,  to  beat  (E.)  A
variant  of  M.E.  pakken,  to  stroke,  from
A.  S.  paccian,  to  stroke  (a  horse).  Jocularly
used.+Icel.  pjbkka,  to  thwack,  thump.
Thwart,  transversely,  transverse.  (Scand.)
Properly  an  adv. ;  afterwards  an  adj. ;  lastly,
a  verb.  M.  E.  thwert,  thwart,  across.  —
Icel.  pvert,  neut  of  pverr,  adj.,  perverse,
adverse.  Used  adverbially  in  phrases  such
as  urn  pvert,  across,  athwart,  taka  pvert,
to  take  athwart,  to  deny  flatly,  p.  The
Icel.  pverr,  adj.,  is  cognate  with  A.  S.
pweorh,  perverse,  transverse,  Dan.  tvar,
transverse  (whence  tvart,  adv.,  across), Swed.
tvar,  across  (whence  tvart,  adv.,  rudely),
Du.  dwars,  Goth,  thwairhs,  cross,  G.  zwerch,
adv.,  across,  awry.    Allied  to  Twirl.
Thwite,  to  cut.  (E.)  Obsolete.  A.S.
pwitan,  pt.  t  pwdt,  pp.  pwiten,  to  cut.
