Слово "expound". Англо-русский словарь Мюллера

The Germanic family, for instance, according to the theory I am expounding, has the right to take back the scattered limbs of Germanism, even when these limbs are not asking to be joined together again.

The Time Traveller (for so it will be convenient to speak of him) was expounding a recondite matter to us.

  I have been trying to educate you; I have expounded to you the higher philosophy of your usefulness, and suggested to you some serviceable arguments.

“You see,” he expounded, “the moon, that queen of the landscape, was shining.

That tonne-for-tonne deal-- Prof had expounded it Earthside, had been argument for a Terran catapult.

I then expounded to Miss Mills what I had endeavoured, so very unsuccessfully, to expound to Dora.