| Language: | Old English |
| Origin: | thy læs the 'by which less that' |
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lest
literary
literary1 in order to make sure that something will not happen :
She turned away from the window lest anyone see them.
She turned away from the window lest anyone see them.2 used to show that someone is afraid or worried that a particular thing might happen
worried/concerned/anxious etc lest ...
He paused, afraid lest he say too much.
She worried lest he should tell someone what had happened.
He paused, afraid lest he say too much.
She worried lest he should tell someone what had happened.