Parshas Pinchas
The following is a kli yakar
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Why do we do this by all the families. Why do we take a name and basically put a “?” in the front and a “?” at the end?
Until this incident, there was never any suspicion of znus on klal yisroel. Now there was (perhaps) a basis for the other nations to claim znus has previously occurred in Mitzrayim as well. Therefore the Yud and Hey was added here to the family name to show that they were all from unions where the shchina dwells.
(The classic dvar torah that you have the Yud of Ish and the Hey of Isha, to show that if there is Shalom Bayis, Hashem dwells amongst them).
We are now left with the question, however, why does the letter Hey preceed the letter Yud? We know that in Hashem’s name the yud preceeds the hey!
This is done to show that the women (who are represented in the Hey) were more devoted to tzinus then their male counterparts. Therefore when discussing the purity of these families, we start with the Hey, which represents the woman, who were more strict on tznius.