Version Y = Yellow Book of Lecan (TCD, MS 1318 (H.2.16)), cols. 3–88.
| Ref | Text | § | Print ref | MS | |
|---|---|---|---|---|---|
| YAdd.651 | Fim .i. deog. | YAdd | 651 | col. 43 | concord. |
| YAdd.652 | Fim .i. fin, unde dicitur dodaile fim i crethir. | YAdd | 652 | col. 43 | concord. |
| YAdd.653 | Fethal .i. corn cumdaig argoid. | YAdd | 653 | col. 43 | concord. |
| YAdd.654 | Fochla fochla an tuascert. | YAdd | 654 | col. 43 | concord. |
| YAdd.655 | Faitsi an desscert. | YAdd | 655 | col. 43 | concord. |
| YAdd.656 | Fochla nomen do suidhe na flatha. | YAdd | 656 | col. 43 | concord. |
| YAdd.657 | Fiannachtach .i. fiangnimach .i. gnim fian iais. | YAdd | 657 | col. 43 | concord. |
| YAdd.658 | Forbasach .i. sudiges bes foruib no cacht. | YAdd | 658 | col. 43 | concord. |
| YAdd.659 | Fothach .i. fothugud, unde dicitur rofothath flaith for Raigni ruad. | YAdd | 659 | col. 43 | concord. |
| YAdd.660 | Ficht .i. feig. | YAdd | 660 | col. 43 | concord. |