Abbreviations
| EAGLE | Electronic Archive of Greek and Latin Epigraphy (www.edr-edr.it). |
| GL | Keil, H. 1855–80. Grammatici Latini, Leipzig: Teubner. |
| GRFF | Funaioli, G. 1907. Grammaticae Romanae fragmenta, Leipzig: Teubner. |
| SH | Lloyd-Jones, H. and Parsons, P. 1983. Supplementum Hellenisticum. Berlin: De Gruyter. |
All other abbreviations, including for ancient authors and texts, are those of the Oxford Classical Dictionary. Fragments and testimonia of Nigidius are cited from Swoboda 1889.