vaporer

“_On the contrary, _ The Philosopher says (Ethic. ii, 7; iv, 3) that the "vain man," i.e. a vaporer or a wind-bag, which with us denotes a presumptuous man, "is opposed to the magnanimous man by excess.”

Summa Theologica, Part II-II (Secunda Secundae) Translated by Fathers of the English Dominican Province

“If, when we know that a man is a blatant vaporer, we simply let him vapor, and mind our own business; if, having gauged the measure of a woman's mind, and found it only an inch deep, we do not fret our souls by vain dredgings in a channel to-day that will fill up by to-morrow; if we give the fool the benefit of his license; and expend thought and care upon that which is hopeful and profitable -- do we not prove ourselves prudent economists of time and labor?”

The Secret of a Happy Home (1896)

“He who now seems to you to be a hero, is in reality a mere vaporer; don’t be alarmed.”

The Comedies of Terence Literally Translated into English Prose, with Notes