𒊕

𒊕 U+12295, 𒊕 CUNEIFORM SIGN SAG ← 𒊔 Cuneiform 𒊖 →

1. the pictogram as it was drawn around 3000 B.C.E.;
2. the rotated pictogram as written around 2800 B.C.E.;
3. the abstracted glyph in archaic monumental inscriptions, from ca. 2600 B.C.E.;
4. the sign as written in clay, contemporary to stage 3;
5. late 3rd millennium (Neo-Sumerian);
6. Old Assyrian, early 2nd millennium, as adopted into Hittite;
7. simplified sign as written by Assyrian scribes in the early 1st millennium.

English Wikipedia has an article on:

List of cuneiform signs

Wikipedia

• R. Borger, Mesopotamisches Zeichenlexikon (MZL), Münster (2003)
• A. Deimel, Šumerisches Lexikon (Deimel), Rome (1947)
• Chr. Rüster, E. Neu, Hethitisches Zeichenlexikon (HZL), Wiesbaden (1989)

Orthographic borrowing from Sumerian 𒊕 (sag̃, “head”).

𒊕 • (SAG)

1. Sumerogram of pūtum (“forehead, front”)
2. (rare) Sumerogram of qaqqadum (“head, top, person”)
3. Sumerogram of rēštum (“beginning”)
4. Sumerogram of rēšum (“head, top, slave”)

𒊕 • (sag̃)

1. head
2. front, fore, beginning
3. surface, top
4. man, person, human being
5. slave, servant

• Sumerian terms spelled with 𒊕

• “𒊕 (sag̃)” in ePSD2
• Daniel Foxvog, Elementary Sumerian Glossary (2016)