observe.  (F.-L.)  O.F.  observer.—
L.  obseruare,  to  take  notice  of,  mark.— L.
ob,  near ;  seruare,  to  keep,  heed.
preserve.  (F.-L.)  O.F.  preserver,
to  preserve.— L.  pra,  beforehand;  seruare,
to  keep.
reserve.  (F.  -  L.)  O.  F.  reserves  -  L.
re-seruare,  to  keep  back.
reservoir.  (F.-L.)  F.  reservoir.—
Low  L.  reseruatorium,  a  store-house.  —  L.
reserua-re,  to  reserve.
serf.  (F.-L.)  F.  serf,  a  servant. -L.
senium,  ace.  of  seruus,  a  slave.
sergeant,  Serjeant.  (F.-L.)  M.  E.
sergeant,  sergant.—  O.F.  sergant,  serjant,
an  officer.  —  Low  L.  seruientem,  ace.  of
seruiens,  an  officer;  orig.  pres.  pt.  of
seruire,  to  serve.
subserve.  (L.)    L.  sub-seruire,  to  serve
under  another.
Session ;  see  Sedentary.
Set;  see  Sit.
Seton;  see  Satin.
Settee,  Settle ;  see  Sit.
Seven.  (E.)    A.S.  seofon,  seven.  +  Du.
zeven ;  Icel.  sjo,  sjau  ;   Dan.  syv ;   Swed.
sju ;  G.  sieben  ;  Goth,  sibun ;  L.  septem  ;
Gk.  ivrd ;   W.  saith ;   Irish  seacht ;  Russ.
seme;  Lith.  septyni;   Skt.  saptan.     Der.
seven-teen,  A.  S.  seofontyne ;  seven-ty,  A.  S.
hund-seofontig    (hund    being   dropped);

Sever ;  see  Fare.
Severe.  (F.-L.)  O.  F.  j«w*.  -  L.
seuerus,  severe,  serious,  grave.  Der.
sever-ity,  F.  severiti.
asseverate.  (L.)  L.  asseueratus,  pp.
of  asseuerare,  to  speak  in  earnest.— L.  or-,
(for  flw^,  to ;  seuerus,  earnest.
persevere.  (F.-L.)  Formerly  perse*-
mr.  —  O.F.  perseverer.  —  L.  perseuerare,  to
persist  in  a  thing.  —  L.  /*r,  thoroughly ;
seuerus,  earnest.
SEXAGENARY.
427


Sew  (1),  to  fasten  with  thread.  (E.)
M.  E.  soiven,  sewen.  A.  S.  siwian,  to  sew.
+Icel.  syja ;  Dan.  sye ;  Swed.  sy ;  O.  H.  G.
siivan ;  Goth,  siujan  ;  L.  juiri ;  Lith.
