اتسق

From وَسْق‎ (wasq, “a measure of capacity as much as a camel can bear”), compare وَاسِقَ‎ (wāsiqa, “to seek to measure oneself with, to be on par with”).

اِتَّسَقَ • (ittasaqa) VIII, non-past يَتَّسِقُ‎‎ (yattasiqu)

1. (reciprocal or transitive with مَعَ‎) to harmonize, to be in line with, to be consistent with, to keep with, to be of the right measure for
2. (intransitive) to become full, to become loaded, to be impleted
   • 609–632 CE, Qur'an, 84:16-18:

     ‏فَلَا أُقْسِمُ بِالشَّفَقِ وَاللَّيْلِ وَمَا وَسَقَ وَالْقَمَرِ إِذَا ٱتَّسَقَ‎

     falā ʾuqsimu bi-š-šafaqi wa-l-layli wa-mā wasaqa wa-l-qamari ʾiḏā ttasaqa

     I swear by the twilight, and by the night and what it encloses, and by the moon when it becomes full.