shortness
2 occurrences across the corpus
1 Enoch
1 Enoch 72:33
And the length of the day and of the night, and the shortness of the day and of the night arise--through the course of the sun these distinctions are made (lit. 'they are separated').
OT Pseudepigrapha
The Second Book of Adam and Eve 19:7
This sign happened to Jared at the end of his four hundred and fiftieth year; as did also many other wonders, we do not record. But we record only this one for shortness sake, and in order not to lengthen our narrative.