Incipit MS and Item no. IMEP volume
Oonli lord be to me teeris as looues bi dai & bi nyʒt TCD 520 [11] 25
Oonli lord be to me teeris as looues bi day and bi niȝt for but Lambeth 541 [1:x] 13
Oonli lord be to me teeris as loues bi day and bi nyȝt for but if Lambeth 484 [1:x] 13
Oonliche lorde bee to me teerys of loue be day and be nyght for but CUL Hh.1.12 [16] 19
Open teching & gods law old & new open ensample Rawl C 881 [9] 23
Operamini non cibum Oxf NC 95 [49] 8
Oportebat ihesum transire Oxf NC 95 [50] 8
Optima medicina pro dolore capitis Peniarth 26 [4] 14
Opus ad album make a coresif of wetriall sat petyr and of Trinity R.14.45 [18] 11
Opus verum et probatum per magister j bedmyster Oxf CCC 226 [17] 8
Opyn techinge in goddis lawe olde & newe open ensaumple of cristis TCD 244 [23] 25
Opyn techynge and goddis lawe orld [sic] & newe opyn CCCC 296 [25] 20
Oracio HM 142 [1] 1
Oracio abacuc Laud 448 [3] 16
Oracio ualde deuota facta per sanctum BMaz 514 [1] 7
Oracio venerabilis bede presbiteri Chetham's 6690 [5] 2
Oro ut caritas vestra magis habundet in scientia Sidney 74 [24] 22
Os a gret clerk scheweth in his bokes off alle creatures Not Mi LM9 [1] 15
Os commyn þing is better & bifore oþer þingis CCCC 336 [1] 20
Os dauy harpe a lay Jesus Cbr Q.G.4 [1] 22
Os facies mentum Caius 417/447 [A 30] 17
Os men schulde trowe in crist þat he is CCCC 336 [71] 20
Os þer ben foure gospelers so þe chirche rediþ CCCC 336 [126] 20
Ossito \gaue/ sternuto singulcio \ȝexe/ nausio \spew/ sterto Trinity O.9.28 [A 72] 11
Othea vpon the greke may be takyn for the wisdom of man PML M.775 [13] 24