lift up her voice. the boy lifted tip his voice and wept. So Septuagint (see Genesis 21:17).
Related Commentaries of Genesis 21:16
Genesis 21:16
16 And she went, and sat her down over against him a good way off, as it were a bowshot: for she said, Let me not see the death of the child. And she sat over against him, and lift up her voice, and wept.