וְאַרְבַּ֣עַת הָאֽוֹפַנִּ֗ים לְמִתַּ֙חַת֙ לַֽמִּסְגְּר֔וֹת וִיד֥וֹת הָאֽוֹפַנִּ֖ים בַּמְּכוֹנָ֑ה וְקוֹמַת֙ הָאוֹפַ֣ן הָאֶחָ֔ד אַמָּ֖ה וַחֲצִ֥י הָאַמָּֽה׃
И четыре колеса были под границами; и оси колес были в основании; и высота колеса была локтя и полтора локтя.
Rashi
a word spoken with proper basis Heb. אפניו, on its basis. An example of it is (Ps. 88:16): “I bear your terrors, it is settled (אפונה) [in my heart],” based and settled within me. This is not from the root of (Isa. 28: 27f): אפן and גלגל, wheel, for, were it so, it would be vowelized with a “pattach” under the “fe” as in (Ezek. 1:16) “האופנים the wheels.” The vowelization of the short kamatz is inappropriate for it.