...ensancharse, to widen, broaden... 
Gustavo Adolfo Becquer 「Legends, Tales and Poems」
...At first the creek kept narrowing as I had looked to see; but presently to my surprise it began to widen out again...
Robert Louis Stevenson 「Kidnapped」
... At last at a place where the trail began to widen, the mullah beckoned King to ride beside him...
Talbot Mundy 「King--of the Khyber Rifles」
...With further ossification the maxillary processesextend to the maxillaries and form complete bony anterior margins to theorbits; the mid-parts of the nasals widen (Pl...
William E. Duellman 「Neotropical Hylid Frogs, Genus Smilisca」
...Is he to aid us in thepursuit of game in the plains? His legs lengthen inordinately, hismuzzle tapers, his lungs widen, he becomes swifter than the deer...
Maurice Maeterlinck Alexander Teixeira de Mattos 「Our Friend the Dog」
...And by vigorous thrusting,with her triangular head as a wedge, she was able to widen theaperture, inch by inch...
Albert Payson Terhune 「Bruce」
...She even undertakes the laborious work of gnawing at the wall, so as to widen the interval, if possible...
J. Henri Fabre 「Bramble-bees and Others」
...It is apparentlya binary, and if so will some time widen again,but its period is unknown...
Garrett Serviss 「Pleasures of the telescope」
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