Source: http://www.dil.ie/print_edition?letter=O
Timestamp: 2019-04-19 18:23:04+00:00

Document:
name onn `furze' (? `ash').
O.Ir. ŏ in accented syllables generally represents Indogerm.
nature of the vowel in the syll. originally following: mug, g s.
goba, gaba `smith' (O.Ir. d s. gobaind); ocus `and', acus, mod.
O.Ir. ō generally results from the contraction of an orig.
diphth. au, eu, or ou. Later it freq. gives way to the diphth.
In Latin loan-words o generally remains (corn, corp < Lat.
Lat. hōra); au also gives ó (ór, Pól < Lat. aurum, Paulus).
`burden' beside aire. Such changes are freq. in bardic poetry.
beside oís, Wb. 21c4 , óis, 28d30 ; táis `dough', Ml. 140b4 (mod.
1 ó prep. leniting follg. consonant and governing dat.
Forms O.Ir. ó (o); hó (ho), usual form in Ml. oa, Sg. 4b1 .
45 156b1 . huandí, 156b2 .
Tur. 91 , 92 , 93 ( Thes. ii 491 ). Ml. 32b2 . huanaib, Sg. 33b8 .
hunaib, 32b6 . hona fuathaib, Enchir. Aug. 76a ( ZCP vii 482 ).
( ZCP vii 482 ), archaic. 2 s. (h)uait. 3 s m. (h)uad. ood, Camb.
37 a ( Thes. ii 244.25 ); ? ōd ( ód v.l.), Trip. 238.21 (archaic forms).
PH 841 , 908 , 2118 , 7636 , 7682 , 7782 , 8289 . uadha, 7722 .
v.l.), Hy. v 36 ; uathi, uaithi. hude, Mon. Tall. 150.23 . 1 pl.
(h)uain(n); huann, Wb. 4d9 . húan, Bcr. 32b3 . uanni, Wb.
246.21 ). Mid.Ir. uann, uainn (uaind). úanna, Mon. Tall.
5064 . uathaibh, uatha, Keat.; mod. uatha.
pers.: ó (= óa) ó, TBC 6159 = óna ó, H., Add.
Tur. 10. hua n-erbirmis, Ml. 135d3 . hua ndirrudigeddar, Sg.
75like: ó sin ale, see TD ii 264 n. § 36 . Occas. folld. by acc. pl.
in Mid.Ir.: o marbu, PH 1073 , 1854 , etc.
enjoy life everlasting', Meyer, but the construction is not clear.
Similarly Enchir. Aug. 79b : ut ratione utatur (.i. o cheill).
motion: tóiniud flatho ó róma[nib], Wb. 26a5 . eirg ón muicc !
get away from, IT i 104.13 , cf. do duit uaim be off! 214.19 .
15[Christ] . . . o marbu, 1854 . regaid cech n-olc uaib, 2102 .
casting (away), etc.: léic uáit inna biada mílsi put away, Wb.
┐ gaíthe uathu ┐ chuccu exhaling and inhaling, 5064 .
25LU). co mbert a mac huaithi, ZCP viii 310.37 . dobered . . .
bé doberadh buaidh catha ona naimdib, Maund. 10.
índdirge, PH 1009. ros-glan Dia in tempul on uli élned, 2098 .
40its own inheritors, BColm. 78.14 .
45`they are to be minded by the "nemedh"-person', Laws iv 180.20 .
aecṅduch let me give no cause to speak evil of me, Wb. 11c1 .
serce ho Pool doib-som abundance of love from P., Wb. 14d30 .
foir feisin action from himself on himself, Sg. 209b12 .
PH 1171. doberdis audpartai dosom ó Máolrúoin, Mon.
. . . o latrandaib, PH 1659.
(f) hearing, learning, etc.: amal bid o Dia rachlóithe, Wb.
Mid.Ir. and in Mod.Ir. ó is commonly used with the reflex.
pron. after such vbs. damadh leis righe an c[h]uiccidh . . .
dobheradh d'eicsibh uado he would give it away to poets, Sitzb.
after vbs. of saying: innis-[s]iu uait dam tell me, Ériu v 26.14 .
20 inneosad uaim daoibh-se sain, Keat. ii 1645 (poem).
(h) to express derivation, descent: [regno] ondí as rex (gl.
úadib Crist (= ex quibus [est] C. secundum carnem), Wb. 4c2 .
25 madgénair ó Mairi, Fél. Prol. 251. in iat a tustige o ṅgenir?
dom were held by one of the O'Neills, Ériu v 232.11 .
gairmeadh ainm an taoisigh, Keat. Poems 1530.
Nubia, ZCP vi 56.24 . iarla o Barbuicc earl of Warwick, 24.16 .
(analogically) iarlacht o Bharbhuicc, ib. 4 .
50dabcha] uatha fein fill of themselves, Maund. 18. osclaigid . . .
own account, Ir. Monthly 1919, 399.16 .
55adj.: gebe duine deradh . . . nach fior uaim a raidhim, Rel.
65animi), 4742 . relta . . . onid sorcha in bith, BColm. 32.25 .
70gan maithius they will gain nothing thereby, ZCP iii 32.18 .
bheathaidh aguinne ó Chonn is óa thriathaib, ML 38.2 .
ar tri cetaib (= per trecentos . . . dies annus ducitur), PH 4934.
brastar o bérlu aiṅglecdha, Ériu ii 100 § 7.
25dant circumstances: o nach mud etir (gl. omni modo), Sg.
25b11 . o tri modaib ordaigther in sollamainsea, PH 3600.
30definite one, § 73. as leó o cert an tsealb theirs by right, Leb.
uimhir éigcinnte that I have a right to skip, Content. vi 86.
VI Agent (an extension of II): (a) with passive vb.: cf.
35.i. óim) enodanda. amal non-nertar-ni ho dia, Wb. 14b13 .
intí on gontar nech by whom some one is slain, Ériu iii 140.182 .
tinólfaider uanni a muster will be made by us, CRR 22 (p. 32.6) .
coro gabad o Iúdaidib ┐ coro crochad o míledu, PH 2363.
cethri cinid . . . ó ngabtha rigi in domain, Ériu iv 174.5 .
Erenn, Arch. iii 4.21 .
brought Thee to', Dán Dé xviii 11.
in which vowels are reinforced by consonants, IGT Introd. § 18.
VII In partitive sense, generally after an indef. or demonstr.
used before subst. la nech huáin any one of us, Wb. 6b20 .
braithfi-sea, PH 2372. dias uaib two of you, Ériu i 118 § 10.
of the G. among churchmen, RC xvii 397.3 .
PH 1974. ba genmnaid o curp he, RC xii 334 z . do bhí . . .
80ó spiraid far from them in body . . . with them in spirit, § 274.
(ó bheith aige) . . . gan (ó bheith na égmhais) `gan' [= O.Ir.
without, IGT Introd. § 67.
carried it off, Ml. 82d9 . ón challaind co alaili, Fél. Prol. 325.
CRR 11. ó luan taite ṡamna co taite n-imbuilc, TBC 2900.
tanic Christ, 3665 . niconfacae óa gein gusan aidchi sin, Mon.
(anall, ille) from that time forth, ón tráth-sa.
30manere). ex parte .i. o aimsir bicc . . . .i. tempore tantum , Wb.
35laithi, Trip. 124.16 ; olaili domnach, ib. 7 ).
(b) space: noí n-imdada ó thenid co fraigid, FB 2 ( LU 8051 ).
ó ó go erboll, TBC 6159. is cían uait airm in-das-fil, 884 .
great extent by óthá, q.v.
6432 . réalt is mo shoillsigheas . . . on ghealaigh amach (i.e.
next to the moon), Corp. Astron. 80.27 . idir dhéirc . . .
all other good works besides, Keat. iii 3040.
2649 . dochonnarc uaim . . . maighdean, Keat. Poems 410.
úad pointed out (the places in) Ulster on every side, TBC 1212.
60 na maic sin a hÉrnaib úan from the distant Erainn, Met.
`his tunic I am loth to behold', KMMisc. 348.9 .
find the star because it had disappeared from them, PH 7013.
70characteristics, RC x 182.4 . In late lang. common after subst.
pláigh? without strong reason for it, MacAingil 211.8 .
thir ecna ┐ latar na psalmb five things which the knowledge . . .
aingel (= indigebat adiutorio angelorum), PH 4841 , cf. 6256 .

References: § 36
 § 7
 § 73
 § 18
 § 10
 § 274
 § 67