Actually such sickle- or scimitar-style swords (Egyptian ḫopeš ) have continued in use on into recent times [1]: Greek kopis, Persian scimitar (šafšēr “lion’s claw” > šimšir, šamšir), French falx, falchion, fauchon “sickle-sword, machete”; French cimeterre; Italian scimitarra; Hebrew kîdôn “scimitar.”[2]

[1] Why has the khopesh never been used since ancient Egypt?

[2] P. Kyle McCarter, Jr., I Samuel, Anchor Bible 8 (Doubleday, 1980), 294, citing G. Molin, “What is a kidon?” Journal of Semitic Studies, 1 (1956):334-337.