We have explained in our article Biblical Formatting located on the world wide web at http://www.Rashiyomi.com/biblicalformatting.pdf, that the Biblical Author indicates bold, italics, underline by using repetition. In other words if a modern author wanted to emphasize a word they would either underline, bold or italicize it. However when the Biblical author wishes to emphasize a word He repeats it. The effect - whether thru repetition or using underline - is the same. It is only the means of conveying this emphasis that is different.

When a modern author wishes to deemphasize a concept they will strike it out. When the Biblical author wishes to deemphasize a concept He places dots over it. The dots in the Biblical version, or the strikeout in the modern version, indicate deemphasis.

There are 6 examples of dotting or strikeout in the Bible. They are presented in the list below along with the accompanying Rashi interpretation. In each case Rashi interprets the verse as if the word was Stricken out.
• Nu03-39a: All that were numbered of the Levites, whom Moses and Aaron numbered at the commandment of HaShem, by their families, all the males from a month old and upward, were twenty and two thousand. Rashi: Aaron was stricken from the census--that is he wasn't counted since he was a Levite.
• Gn33-04a: And Esau ran to meet him [Jacob], and embraced him, and fell on his neck, and kissed him; and they wept. Rashi: The kiss should be stricken from the record! It wasn't a real (i.e. sincere) kiss since Esau really hated Jacob.
• Dt29-29a: The secret things [sins] belong unto HaShem our G-d; but the things [sins] that are revealed belong [are visited] unto us and to our children for ever, that we may do all the words of this law. Rashi: Revealed should be stricken. Revealed sins weren't always visited upon the community; they weren't visited upon the community till after the conquest of Israel in the time of Joshua.
• Gn37-12a: And his brethren went to shepard their father's flock in Shechem. Rashi: The word shepard should be stricken out since they didn't really go to shepard sheep; rather they went to escape their father who favored Joseph.
• Nu09-10a: Speak unto the children of Israel, saying: If any man of you or of your generations shall be unclean by reason of a dead body, or be in a journey afar off, yet he shall keep the passover unto HaShem; Rashi: The requirement far off should be stricken. One need not be absolutely far away - but far away enough not to be able to come to Jerusalem.
• Gn18-09: And they said to him: 'Where is Sarah thy wife?' And he said: 'Behold, in the tent.' Rashi: The phrase to him should be stricken. They said it generally, not just to him. When they met Abraham they said to him where is your spouse. Similarly when they met Sarah they said where is your spouse.

Advanced Rashi: Each of the above Rashis might look homiletic by itself. However the list of Rashis creates an aura of credibility that we would otherwise not be able to achieve. The list of examples is thus an important vehicle for understanding and explaining difficult Rashis.

Rashi actually gives a more detailed technical explanation. Rashi distinguishes between cases when the number of dots on the word is more than the number of letters. However the above set of explanations is straightforward and does not require such technicalities.

Sermonic points: Rashi derives etiquette from the above inference: It is proper etiquette for a guest to ask each spouse about the other spouse. Presumably such asking creates a sense that the guest is equally interested in both partners.