FromProto-Italic*fīlios, *feilios (the Latin can reflect either one, butFaliscan𐌅𐌉𐌋𐌄𐌏(fīleo, hīleo), if original and not modeled on Latinfīlius, would point to*fīl-), from earlier*θeilios, from*dʰeh₁i-l-yo-s(“sucker”), a derivation from the verbal root*dʰeh₁(y)-(“to suck”).
Caecilius Statius (died ca. 168 BC); in:Scaenicae romanorum poesis fragmenta secundis curis. Volumen II. Comicorum fragmenta. – Comicorum romanorum praeter Plautum et Terentium fragmenta secundis curis, edited by Otto Ribbeck, Leipzig, 1873, page 48:
Fílius meus ín me incedit [éccum] sat hilará schema.
Caecilius Statius (died ca. 168 BC); in:Remains of Old Latin, edited and translated by E. H. Warmington, vol. I, 1935, page 496f.:
Priscianus, ap.G.L., II, 199, 17, K: 'Schema' pro 'schemate.' . . . Caecilius in Hypobolimaeo– . . .filius . . . in me incedit satis hilara schema.
Aged peasant, guardian of the changeling Chaerestratus: Priscianus: 'Schema' for 'schemate.' . . . Caecilius inThe Changeling– Here comes myson towards me in merry shape.
“filius”, inCharlton T. Lewis and Charles Short (1879),A Latin Dictionary, Oxford: Clarendon Press
“filius”, inCharlton T. Lewis (1891),An Elementary Latin Dictionary, New York: Harper & Brothers
"filius", in Charles du Fresne du Cange,Glossarium Mediæ et Infimæ Latinitatis (augmented edition with additions by D. P. Carpenterius, Adelungius and others, edited by Léopold Favre, 1883–1887)
