[C19fan]

I believe Daesh is a derogatory term.

[martinidon]

It may be, but the goal is to use that term instead of “ISIS” as not to offend Muslims.

[Bloody Sam Roberts]

Actually, it is an acronym for an Arabic phrase;
"Dawlat al-Islamiyah f'al-Iraq w Belaad al-Sham"...which is the full Arabic term for what English speakers translate as the Islamic State.

Daesh is the new ISIS. I don't think it is a derogatory term since Obama and Kerry are using it.