OED Lay v 1 Etymology: Old English lęcgan The normal representative of the Old English infinitive and of the 1st pers. singular and the plural present tense, would be *ledge; the existing form of the present-stem is evolved from the 2nd and 3rd pers. singular present tense, in which the g of the Germanic verb was followed not by j but by i, and therefore escaped the West Germanic gemination ... More @Wikipedia
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