Singular subjects with plural predicates.—These constructions are rarer than the preceding: inasmuch as two or more persons (or things) are oftener spoken of as being equivalent to one, than one person (or thing) is spoken of as being equivalent to two or more.
Sixpence is twelve halfpennies.
He is all head and shoulders.
Vulnera totus erat.
Tu es deliciæ meæ.
Ἑκτορ, ἀτὰρ σύ μοι ἐσσὶ πατὴρ καὶ πότνια μήτηρ,
Ἠδὲ κασίγνητος, σὺ δέ μοι θαλερὸς παρακοίτης.