"killing of a cat," 1832, from Latin feles "cat" (see feline) + -cide "a killing."
Entries linking to felicide
feline adj.
"cat-like," 1680s, from Late Latin felinus "of or belonging to a cat," from Latin feles (genitive felis) "cat, wild cat, marten," which is of uncertain origin. Hence Modern Latin Felis, the cat genus. As a noun, "a feline animal" (popularly "a domestic cat") from 1861.
-cide
word-forming element meaning "killer," from French -cide, from Latin -cida "cutter, killer, slayer," from -cidere, combining form of caedere "to strike down, chop, beat, hew, fell, slay," from Proto-Italic *kaid-o-, from PIE root *kae-id- "to strike." For Latin vowel change, see acquisition. The element also can represent "killing," from French -cide, from Latin -cidium "a cutting, a killing."
*kae-id-
*kaə-id-, Proto-Indo-European root meaning "to strike."
It is the hypothetical source of/evidence for its existence is provided by: Sanskrit skhidati "beats, tears;" Latin caedere "to strike down, fell, slay;" Lithuanian kaišti "shave;" Armenian xait'em "to stab;" Albanian qeth "to shave;" Middle Dutch heien "to drive piles," Old High German heia "wooden hammer," German heien "beat."