Where does “realitätsfern” come from?

realitätsfern (German) comes from German Realität, from French réalité, from Middle French realité, from Medieval Latin realitas, from Late Latin realis, from Latin rēs, from Latin vindicatio, from Latin vindicō — small stone, pebble; gravel, rubble.

realitätsfern (German): unrealistic, out of touch (with reality)

Definitions

unrealistic, out of touch (with reality)

Ancestry of “realitätsfern”, step by step

realitätsfern traces back through two separate lines of ancestry.

via German Realität

Step	Language	Word	Meaning
1	German	Realität	reality; reality, fact; dasein
2	French	réalité	reality
3	Middle French	realité	property, possession
4	Medieval Latin	realitas	reality
5	Late Latin	realis	actual; real, actual
6	Latin	rēs	thing, object, stuff
7	Latin	vindicatio	civil lawsuit; protection, defence; vindication;...
8	Latin	vindicō	to lay claim to as one's own (often with sibi)
9	Latin	vindex	claimant, vindicator
10	Latin	dīcō	to say, talk, speak, utter, mention
11	Latin	-tiō	tion, -ation, -ing
12	Latin	dissertātiō	(spoken) dissertation, discourse, disquisition
13	Latin	dissertus	arranged, disposed; explained
14	Latin	disserere	second-person singular future passive indicative...
15	Latin	dis-	asunder, apart, in two; reversal, removal;...
16	Latin	calceus	shoe
17	Latin	calx	limestone; chalk; the finish line
18	Ancient Greek	χάλιξ	small stone, pebble; gravel, rubble

via German fern

Step	Language	Word	Meaning
1	German	fern	remote; far away
2	Middle High German	verren	—
3	Old High German	ferrana	from afar
4	Old High German	ferro	afar; skipper
5	Proto-West Germanic	*ferrō	—
6	Proto-Germanic	ferrai	far, distant
7	Proto-Indo-European	per-nóy	—
8	Proto-Indo-European	per-	before, in front; first; to go through
9	Proto-Indo-European	pr̥tós	passed , crossed

Every word from Ancient Greek χάλιξ →Every word from Latin -tiō →Every word from Latin dis- →