Span

The "span" is the eleven day "week" within the setting. The appendix of the German edition says that there are four spans in each month .

The days of the span are:

Luten
Shuden
Theden
Feochen
Orden
Hepten
Chaen
Felling
Reaving
Cendling
Mourning

There are also seven days of High Mourning at the end of each year.

The first 7 days seem to refer to the numbers 1 to 7 in the Temic language, with the last 4 days referring to the Tehlin religion.

The first seven days are numbers - day number 7 is Chaen, hence Chandrian.

Felling, Reaving, Cendling, and Mourning all have rough English translations or at least strong associations. These have religious significance tied to the Tehlin religion, and to the observant reader, this is revealed in the story told by Skarpi.

Felling – "Fell" as in you fell a tree by chopping it down. (This is the day when Tehlu felled Encanis.)

Reaving – "Reave" (Archaic) means to seize and carry away. To steal or pillage. (Encanis raiding and destroying cities).

Cendling – Kindling, lighting a fire. (The day they lit the fire that would burn Encanis.)

Mourning – Mourning as in grieving, not the beginning part of the day. (They day they mourn the death of Tehlu.) - paraphrasing user "thesissy" on Tor reread site - JezDynamite - 10:03, March 18 2012