Where does “prejudicious” come from?

prejudicious (English) comes from English prejudice, from Old French prejudice, from Latin praeiūdicium, from Latin iūdicium, from Latin iūdicō, from Latin iūdex, from Latin iūs, from Latin dīcō — small stone, pebble; gravel, rubble.

prejudicious (English): Acting with prejudice; having prejudice

Definitions

Acting with prejudice; having prejudice

Ancestry of “prejudicious”, step by step

Step	Language	Word	Meaning
1	English	prejudice	An adverse judgment or opinion formed beforehand...
2	Old French	prejudice	harm; damage; prejudgment; prejudice
3	Latin	praeiūdicium	precedent, example
4	Latin	iūdicium	judgment, decision
5	Latin	iūdicō	to examine judicially, judge, pass judgement, decide; condemn
6	Latin	iūdex	judge
7	Latin	iūs	law, right
8	Latin	dīcō	to say, talk, speak, utter, mention
9	Latin	-tiō	tion, -ation, -ing
10	Latin	dissertātiō	(spoken) dissertation, discourse, disquisition
11	Latin	dissertus	arranged, disposed; explained
12	Latin	disserere	second-person singular future passive indicative...
13	Latin	dis-	asunder, apart, in two; reversal, removal;...
14	Latin	calceus	shoe
15	Latin	calx	limestone; chalk; the finish line
16	Ancient Greek	χάλιξ	small stone, pebble; gravel, rubble

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