cepher, “book,” strong’s H5612

The first occurrence.

This is the book of the generations of Adam. In the day that God created man, in the likeness of God He made him. Gen 5:1

The primitive root.

Strong’s H5612, cepher, a concrete noun meaning, “writing, document, book;” from Strong’s H5608, ספר caphar, a primitive root meaning, “to recount, to relate.” The 3-letter root is sin + pey + resh.

sin ס  = the thorn, thus grab, hate, protect
pey ף, פ  = the mouth, thus open, blow, scatter, edge
resh ר  = the head of man, thus head, first, top, beginning, man

The story being told is of a turned (sin, as one turns away from a thorn to avoid it) lip (pey), i.e., the gathered, as the turned bowl with a lip gathers together whatever it contains, thoughts of a man (resh, i.e., that which proceeds from the man’s head).