甚

Top sweet radical — the indexing component. Pictures a mouth 口 with a horizontal stroke inside marking a tasty morsel held on the tongue. The original picture of 甚 was a sweet treat being savoured to the point of excess — from there came the modern adverbial sense extremely, very.

Bottom 匹 — historically the lower piece was a different shape (a man/woman pair) and was regularised to 匹 in the modern script. The old read was 'savouring sweetness with one's mate to the point of being smitten,' giving the intensifier sense extreme, exceedingly. Now mostly fossilised in 甚至 (even, going so far as) and 不甚 (not particularly).