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80 óchtar n o,m.(O.Ir. form ofúachtar)the upper part,top :i
n-ichtur aetheris ┐ i n-ochtur aeris, Bcr. 33c9 ( Thes. ii 22.38 ),
cf. 32a3 .for ochtar do chinn, Thes. ii 249.3 . In place-names:
dirrógel Cummen . . . Ochter n-Achid, Thes. ii 239.15 ( Ardm.
17a2 ) = mod.Oughteragh.i nOchtar [óchturv.l.] Cháerthin,
85 Trip. 132.15 .ind-Ochtur Cuillenn, 198.5 ; see Hog. Onom. for
other exx.; gradually superseded byúachtar.
In compds.:ind ochtardescerdach the right upper angle.
Thes. ii 255.10 ( Stowe Miss. 65b ).isind oxil ochtarthuaiscerdig
left upper, Thes. ii 255.9 .

óchtarach adj o,ā. (O.Ir. form ofúachtarach) upper :co ruc a
5chléthe n-óchtarach din tig, LU 1476 = MU 48.28 .

ochtarche xsee1 ochtrach.

ochte adj io,iā. pertainingto the number eight,octonary :hí figuir ind
nuiḟiadnisi ochti(i.e. the New Testament containing eight
groups or sections), Thes. ii 254.10 ( Stowe Miss. 65a ).

10 ochtgach n[o,m.]afirorpine tree :ochtgach[octhgachMSS.],
gl.abies, Thes. ii 47.14 (Philarg.).ochtgag(gl.pinus) ib. 13 .
for lár ochtgaigh, K. and H. § 1. Seeochtach.

ochtimber xseeoctimber.

1 ochtmad (ocht) ord.num.
15 IAsadj. o,ā. eighth(in order), always preceding subst.
amal is e cet lá na sechtmaine in domnach . . . is amal sin is e
is ochtmad lá, PH 3585. Gen. preceded by def. art. (the masc.
form int being common in ns. with masc. and fem. nouns
alike):intochtmad[crannchor], SR 5141. in t-ochtmad
20deach, Corm. p. 17 s.v. deach.archangeli, is e in t-ochtmad
grad, PH 6251. in t-ochtmad oes, 7619 .is í so in t-o. ¤ plág,
7653 (but:inochtmadtaidbsi, 6716 n s.).issind ochtmad
lathi, SR 2581. isin o. ¤ caipdel fichet the twenty-eighth chapter,
PH 7818. i forbu ind ochtmad laí, 5653 (= LB 56a18 , written
25in full).tindscetul na hochtmadi oesi, 3582 .a dtosach na
hochtmuighe [mís], ML 36.19 .annsa n-ochtmhadh bliadhain
déug eighteenth , 1 Kings xv 1.
In senseone of eight:ochtmad rann in insci one of the eight
parts of speech
, Sg. 71a15 ,cf. ib. 5 (ochtmath).in t-o. ¤ tricha
30chét déc one of the eighteen cantreds, TBC 659. issé in t-o. ¤
fer tainic lé Ciaran co Cluain mic Nóis, Fél. 148.40 .bid hí so
an t-o. ¤ releac dhéc bhus dili leam, Acall. 1320. gur shaor sé
Naoi an t-ocdmhadh pearsa, 2 Pet. ii 5.
IIAssubst. o,n.andm. aneighth part,one-eighth :ochtmad
35imbairgine [leg.mbairgine] Coluim Cilli, Mon. Tall. 68 (n s.).
ochtmadh n-eneclainni, Laws v 460.9 Comm. ochtmad do tir
one-eighth of his land, 518.26 Comm. ochtmadh an ochtmaidh
the eighth of the eighth, iv 82.1 Comm. (viii.m̄MS. in both
cases).

40 2 ochtmad n ā,f. aperiodofeight days :a dithim for ochtmad,
Laws i 144.25 .leth na hochtmuidi, v 66.12 Comm.

ochtmoga num t,m.(ocht)g s. ochtmugat, Ml. 34b17 , 111c1 .a d s.
ochtmugait, 111b22 , 28 .ochtmogat(o,m.) IGT Dec. § 11.7 .
(late form).
45 The numbereighty , folld. byg p. ochtmodha nō ochtmodhad
.i. ceithre fichid, O'Cl.ochtmoga caín cinged, Fél. Feb. 14.
octmogat la cli eighty (stories), Laws i 44.22 (n s.).fer ind
ochtmugat bliadnae(i.e.an octogenarian), Ml. 111c1 .cóic
míli ochtmugat ar chét(= 185,000), 34b17 ,cf. PH 8048. hi
50cind tri bliadan ochtmogat ar dib cetaib(283), PH 578.
iarsna deich mbliadnaib ochtmodhat(90), Laws i 138.7 Comm.
rand na haenmadh rainne ochtmhoghat(⅟81), ii 412.6 .se
bliadhna ochtmoghdha(86), MacCarthy 430.2 .coic ar
ochtmodhaid(85), 313.5 .céud ┐ ochtmhodhad ┐ seacht
55mblíaghna(187), Gen. v 25. seacht cceud ochtmhodhad ┐
dhá bliaghain(782), ib. 26 .

ochtmugdaige n iā,f.abstr. fromochtmoga.d s. iarsind ocht-
mugdaigi after the age of eighty, Ml. 111b26 .

1 ochtrach n n.(<óchtar,úachtar? see Ped. ii 44 ) treated aso-
60ands-st. Dung; adunghill. d s. buith for ochtrach(=inter
stercora), Ml. 129c2 .dichetal for ochtraig, Triads 117 (otrach
v.l.).n p. amal bimmis ochtarche(gl.tanquam purgamenta),
Wb. 9a7 .Cf. otrach.

2 ochtrach n(leg. term)a long period ofprescription ; defined as
65the duration of ten lives:is ann is rudrad o rosaigh co coiciur.
O rosaigh co dechnemur is ann is robith ┐ is and is ochtrach,
H. 3.18 p. 9b ( O'C. 21 = ZCP xii 363.21 ); some words fallen
out after┐? Defined as 900 years:Duruth cet bliadain.
Ruthrod tri coeccait. . . . Robith ccl. . . . Ochtrach dcccc.,
70 ib. 9b ( O'C. 21 ).

ocían (océn) n o,m.(Lat.oceanus) alsoacían,acén,oicén,aicén,
mod.aigéan.aigén(g s. -éin,-én), IGT Dec. § 35.12 .
Theocean, generally of deepseaas oppd. to shallower water
near land. d s. ind ocian, Corm. Y 825 = in oceano , LB.in
75tocéb mo churchan cíar | forin n-ocían n-uchtlethan n-án?,
Auraic. 5353 ( LL 37c44 ) =os aigen uchtlet[h]an, ZCP x 46.5 .
connici in n-acían muridi fuineta, LU 30. ond ocian thiar(i.e.
the Atlantic), Fianaig. 30.17 .atá ailen ele a muir accíon,
Maund. § 261 (leg. muir-a.?).san oigian, Keat. ii 1717.
80 feghaidh an t-aiccen uadha for cech leith, BNnÉ 52.5 (but:
forin occían, ib. 6 ).aran aicen nemforcennach, Ériu iv 142.10
(oician v.l.). Exceptionally treated asfem.:āsfaid carraic
fora druim | issind acen octaig duind, LL 278a8 . In loose
sense:co ndernai occian imdomain don conair`made deep
85water of the path
', CCath. 2639. g s. ós fudumnaib aicgéin, SR
6 .os inis . . . ocein ollbrais, Anecd. i 55 § 39. ic dubhimram
inn oiccéin, CCath. 2652. onfaissi occiain`diving the ocean'
(of a futile undertaking), 4396 .a n-airther aiceoin, ZCP v 504
§ 4 .le piastaibh an aigéoin, BNnÉ 73 § 130.
Of particular seas:o muir Chaisp siar cusin ocían sirecda,
5 LB 150a21 .o aiccian imdomuin . . . Mara Romuir, BB 240b40 .
issin n-ocian de Tirrén, LL 190c30 .ón aigéan dá ngairthear
Mare Euxinum, Keat. i 174.18 .Fig. oigéan ainbhis, Content.
xxv 13 .i n-aigeun anbhail na hanmann, Eochairsg.
47.4 .pl.(in loose sense)set daberar a aicenaib, Laws iii
10422.10 .a murlochaib .i. a haicdenaib[sic], v 298.18 Comm.
bristear amach na haigéin the deeps, Prov. iii 20.