How well he is justified may be seen by a glance at the text of Catullus:—
DE ARRIO.
"Chommoda" dicebat, si quando commoda vellet
Dicere, et "hindsidias" Arrius insidias:
Et tum mirifice sperabat se esse locutum.
Cum, quantum poterat, dixerat "hinsidias."
Credo, sic mater, sic Liber avunculus ejus.
Sic maternus avus dixerit, atque avia.
Catullus, Carmen lxxxiv.
Which—for the benefit of 'Arry himself, who is not perhaps familiar with the "Lingo Romano"—though he may know something of a "Romano" dear to certain young sportsmen, though not dearer to them than other caterers—may thus be very freely adapted:—