A few possibilities.
Ezra 1:9 מחלפים. Rashi says that מחלפים is knives and it comes from בית החלפות where the knives were kept in the Bais Hamikdash.
Even Ezra and Metzudas David in Ezra 1:9 also translate מחלפים as knives. Metzudas David says the word is used for knives at you are changing the animal from life to death.
מחליפים את הבהמה מחיים למיתה
Aruch HaShulchan Yoreh De'ah 265:35:
וקורין לזה קוואט"ר. ויראה לי שזהו מלשון "קטורת", דאמרינן בכריתות (כריתות ו ב): מה לשון "קטורת"? דבר שקוטר ועולה. ופירש רש"י: קוטר – שמתמר ועולה כמקל, עיין שם. וכיון שנתבאר שהמילה היא כקטורת, לכן נקרא זה שמקרב התינוק אל המילה, שמקרבו להקטרת. ועל פי שינוי הלשונות נתחלף בין "קוטר" בחד וי"ו לקוואט"ר בשני ווי"ן.
Immediately after stating that that was Moshe's name he tells us where he got it from:
ככה כתוב בספר עבודת האדמה הנעתק מלשון מצרים אל לשון קדרים גם ככה בספרי
That is, he got it from earlier Egyptian and Greek books.
This is the very first question in the Rif. The Rif answers that he never heard anything about it ,but he notes that when lashon zachar is used we can learn from it,but when it's lashon nekeivah we dont.
Rav Shlomo Aviner answers that a daughter is more responsible over what is given to them than a son. He uses the gemara in Bava Basra 141a as a proof(...
Here is a rough draft I wrote which suggests both the roots of each place name, and a personal life-journey interpretation (it is too long to post here as an answer): I believe that most life-patterns are universal and applicable on many levels, so the same basic pattern would be true on a personal level and on a national level.
One source I found which ...
According to קרן השור וקרן ממון (thanks to Nbubis) the use of the word קרן for the principal stems from Vaikra 5, 24 "וְשִׁלַּם אֹתוֹ בְּרֹאשׁוֹ וַחֲמִשִׁתָיו יֹסֵף עָלָיו", lit. "pays off his head", where the word "head" was allegedly replaced with "horn" because a person's property was measured by his cattle.
קרן כראש ממון
נחזור לשאלה שבה פתחנו – האם ...
There are actually multiple words for each of the four directions. I wrote an essay about this which I think helps clarify the issues involved. Here's what I wrote:
The Bible (Genesis 28:14) relates that when G-d blesses Jacob and
tells him that his descendants’ population will “burst forth” in all
four directions, He uses the following words to ...
Meir ben Ezekiel ibn Gabbai writes in Chelek HaAvodah, Sitrei HaTorah 24:
It is called daughter because it was the very end of prophecy, and thus extremely weak on the spectrum of prophecy. Therefore, it is likened to the daughter [who is weaker than the son],the term daughter thus refers the fact that it is a weak form of prophecy; a mere spark.