Mérrily, mérrily sháll I live nów,

Únder the blóssom that hángs on the boúgh.—Shakspeare.

The second is exhibited by the word disáble (x a x).

But vaínly thou wárrest,

For thís is alóne in

Thy pówer to decláre,

That ín the dim fórest

Thou heárd'st a low moáning,

And sáw'st a bright lády surpássingly faír.—Coleridge.

[§ 526]. The third is exhibited by the word cavaliér (x x a).