Uttu's name was written TAG×TÙG, with the sign TAG (usually pronounced as
tuku) referring to the action of weaving cloth. The word
uttu could also denote a part of a
loom. It is also possible that the name dTAG.NUN should be read as Uttu, though
Joan Goodnick Westenholz rejected this interpretation and instead assumed that dTAG.NUN was one of the multiple writings of the name of
Bizilla or a closely related goddess who like her came to be associated with
Nanaya in later sources. Uttu was regarded as the goddess of weaving. According to an esoteric explanatory text which links various materials with gods, she could be associated with colored wool.
Uttu and spiders Thorkild Jacobsen argued that Uttu was envisioned as a spider spinning a web. However, the connection between Uttu and spiders, or more precisely between her name and the Akkadian word
ettūtu ("spider"), is limited to a single text, and it might represent a "learned etymology" (scribal speculation), a
folk etymology or simply rely on the terms being nearly
homophonous. Two copies of the text contain slightly different versions of the same passage, "the handiwork of a spider (
ettūtu) will be steady in his house," or "the handiwork of Uttu will be steady in his house."
Ettūtu was only one of the words for spiders present in Akkadian texts, the other two being
anzūzu (written ŠÈ.GUR4) and possibly
lummû. In Sumerian, spiders were known as
aš,
aš5,
lùm or
si14. In Mesopotamian literature spiders are mostly attested in proverbs, with a particularly well attested one describing a spider (ŠÈ.GUR4) putting a
ḫamitu insect in fetters and then cutting it into pieces after it acted as a witness in a lawsuit against a
kuzāzu insect. Most likely the meaning of it was that an evildoer should not act as a witness. Another proverb mentions a spider (
ettūtu) which prepared a net to catch a fly but ended up threatened itself by a lizard, possibly meaning that one responsible for evil deeds will be eventually defeated by a greater force. Spiders also occur as an art motif on
Early Dynastic seals associated with female weavers. ==Worship==