Sentence:  Our Drighten sent his high angel Gabriel to ..Zachariah.. to say that he should <WSD>strain</WSD> a holy child and clepe it John. (approx.1225, Homilies in Cambridge) 
Meaning of the word marked with <WSD> tags:  To beget, generate (of light), engender, copulate (both of animals and humans), lie with, be born, come into the world.