Statistics for Proto-Indo-European doublets in Modern English adjectives

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Latin-derived doublet	Linking clue	Germanic-derived word	% Correct
paternal	like a dad	fatherly	69%
juvenile	a child, for example	young	51%
adult	grown-up	old	43%
similar	they're almost alike	same	31%
edible	can be consumed	eatable	29%
crude	unprocessed	raw	23%
ulcerous	infected	ill	17%
robust	like mahogany	red	17%
gentle	in his own special way	kind	11%
advisable	the best thing to do	wise	11%
cordial	e.g. a helping	hearty	9%
municipal	common, vulgar, harsh	mean	9%
acerbic	cutting	sharp	9%
lipid	dearly clings on	alive	6%
pedestrian	ankles and toes	footly	6%
brief	time flies when you're having fun	merry	3%
satiated	fed up	sad	3%
durable	sticks around	true	3%
mordant	with a cutting wit	smart	3%
funereal	regards passing away	deadly	0%
proper	not belonging to another	free	0%