שְׁפִיפֹן Horned adder (shefifon)
Every verse in which this word stands — 1 place, in canonical order, first appearance to last. These are the places the lexicon carries under this word's own entry, counting every form the text writes it in, which is the number on the list.
Once, in Yaakov's blessing of Dan — the shefifon on the path that bites the horse's heels. Traditionally the horned adder lying in the sand; the identification is discussed.
יְהִי־דָן נָחָשׁ עֲלֵי־דֶרֶךְ שְׁפִיפֹן עֲלֵי־אֹרַח הַנֹּשֵׁךְ עִקְּבֵי־סוּס וַיִּפֹּל רֹכְבוֹ אָחֽוֹר
Dan shall be a serpent in the way, A horned snake in the path, That biteth the horse’s heels, So that his rider falleth backward.
Quick answers
What is the Hebrew word for horned adder?
Horned adder in Hebrew is שפיפן, with a gematria of 520 in the standard method.
How many times is the horned adder mentioned in the Tanakh?
The word stands 1 time in the Tanakh, first at Genesis 49:17.
A spelling is not a word. The bare letters שפיפן stand 1 time in the corpus, which is a different question and often a different number: the same letters can spell a name or another word entirely, and the creature written with a particle attached is a spelling that search never returns. It is here, as itself.
See the one occurrence of the spelling שפיפן →