It’s the English word so, meaning thus (“in this way, in this form”). In this case, it means that the word אֱלֹהּ appears in Deuteronomy 32:17 without any affixes (prefixes or suffixes) and without a vav, whereas “elsewhere” (the lexicon says) it appears with a vav in its various forms (אֱלוֹהַּ).
Jason Hare
Tel Aviv, Israel The Hebrew Café עִ֣יר פְּ֭רוּצָה אֵ֣ין חוֹמָ֑ה אִ֝֗ישׁ אֲשֶׁ֤ר אֵ֖ין מַעְצָ֣ר לְרוּחֽוֹ׃
ספר משלי כ״ה, כ״ח