French word abatis comes from Vulgar Latin *abbatere, Late Latin abbatto, Latin *abbato (I beat down. I cast down.), Old French batre (To beat; to hit; to strike.)

Detailed word origin of abatis

Dictionary entry	Language	Definition
*abbatere	Vulgar Latin (la-vul)
abbatto	Late Latin (LL)
*abbato	Latin (lat)	I beat down. I cast down.
batre	Old French (fro)	To beat; to hit; to strike.
abatre	Old French (fro)	To destroy; to slaughter. To knock over; to knock down.
abattre	Middle French (frm)
abbatre	Middle French (frm)	To knock down.
abattre	French (fra)	(pronominal) to descend upon with violence or furor. (pronominal, of lightning) to strike. (reflexive) to fall down, especially of tall things, such as trees. To butcher; to slaughter for meat. To cut down (a tree). To destroy or demolish (a wall). To shoot dead.
abattis	French (fra)	(Canada) An area that has been cleared of trees, but not yet of their stumps.. (cooking, plurale tantum) giblets. (dated, slang, plurale tantum) limbs. (military) abatis. Rubble.

Words with the same origin as abatis