Sabaic

myḳṯ̣ - distress, affliction (SD 169)

PCS
*yḳṯ̣ - to wake (Kogan 2015: 531)
Contra AHw. 28 and HALOT 431, there is probably no relationship between this root and Akk. akāṣu ‘hartnäckig sein’, akṣu ‘dangerous, overbearing, terrible’