I promise as you spend most of your time working on Not Urgent but Important tasks, you’ll feel a renewed sense of calm, control, and composure in your life. You’ll feel like you’re making real progress. By investing your time in Q2’s planning/organizing activities, you can prevent and eliminate many of the crises and problems of Q1, balance the requests of Q3 with your own needs, and truly enjoy the veg-outs of Q4, knowing that you’ve earned the rest. By making Q2 tasks your top priority, no matter the emergency, annoyance, or deadline you’re hit with, you’ll have the mental, emotional, and physical wherewithal to respond positively, rather than react defensively.
1560s, from Middle French distinguiss- , stem of distinguer , or directly from Latin distinguere "to separate between, separate by pricking," from dis- "apart" (see dis- ) + -stinguere "to prick" (see extinguish , and cf. Latin instinguere "to incite, impel").
The suffix -ish is due to the influence of many verbs in which it is the equivalent of Old French -iss- , ultimately from Latin inchoative suffix -iscere (this is also the case in extinguish , admonish , and astonish ). Related: Distinguishing . The earlier form of the verb was distinguen (mid-14c.).