H6638–צָבָה–tsa.vah

and this water that bringeth the curse shall enter into thy bowels, to make the belly to swell, and the thigh to shrink. And the woman shall say, Amen, amen.

לַצְבּ֥וֹת (צְבּ֥וֹת) tz.Bot “make swell”

And when he hath made her to drink the water, then it shall come to pass, if she have been defiled, and have committed unfaithfulness against her husband, that the water that bringeth the curse shall enter into her, for bitterness, and her belly shall swell, and her thigh shall shrink; and the woman shall become a curse among her people.

וְצָבְתָ֣ה (צָבְתָ֣ה) tza.ve.Tah “it will swell”