serrulate

Etymology tree
Latin serr(āre)
Proto-Indo-European *-tḗr
Proto-Indo-European *-trom
Proto-Indo-European *-tlom, *-dʰlom
Latin -ulader.
Proto-Indo-European *-lós
Proto-Indo-European *-elós
Proto-Italic *-elos
Latin -ulusder.
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Latin -ulader.
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Proto-Indo-European *-tlomder.
Latin -ulumder.
French -uleder.
English -ule
English -ate
English serrulate
From Latin serr(āre) + English -ule + -ate.