Our host doesn't support full Unicode fonts so my apologies for currently posting only transliterations instead of Hebrew font.
The biblical Hebrew word for hair has one spelling and two pronunciations
se`ar
sa`ar.
The main biblical Hebrew word for goat has two spellings and one pronunciation
sa`iyr | this is the plene or full spelling with the consonant yodh |
sa`ir | this is the defective or short spelling without the consonant yodh. |
There are other biblical Hebrew words for goat. They are
'aqqow | wild goat |
`ez | she-goat |
`iziym | goat's hair |
ssaphiyr | he-goat |
tayish | he-goat known for butting. |
The biblical Hebrew words for hair and goat are from two different roots.
The biblical Hebrew word for hair is not the same word for goat's hair.
The Israelites did not liken their hair to goat's hair hence different words for each.
The goat is not an animal of favorable metaphor in biblical Hebrew.
It's speakers never applied goat references to themselves. They
reserved it for the unsavory characters like Esau (the antithesis
of an Israelite) or the king of Greece in Daniel's novella. Satyrs
were thought of as having a goat's form and that word is spelled
exactly the same as goat in Isaiah's prophecies.
Texture description of hair is rare in biblical Hebrew literature
`*amar | wool; being like `amar meaning a heap |
tal*tal | bushy; from tal meaning piled up. |
Unlike examples of wishful thinking and irrelevant modern photos
[insert modern image of wavy haired RedSea Jewess later]
the above biblical hair textures are in keeping with authentic art
of the biblical era depicting Judahites conquered by Sennacherib.
Fig 1 Three "chief elders" of the Judaean city Lachish
bow before Sennacherib. From
James B. Pritchard's
THE ANCIENT NEAR EAST VOL I net copyright ©1997 al~Takruri
Since Israel was composed of a core group heavily supplemented
by other peoples to their south, east, and north there was no one
hair type or phenotype applicable to all biblical era "Hebrews."