monticule

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mon·ti·cule

M0407600 (mŏn′tĭ-kyo͞ol′)n. A minor cone of a volcano.
[French, from Late Latin monticulus, diminutive of Latin mōns, mont-, mountain; see men- in Indo-European roots.]

monticule

(ˈmɒntɪˌkjuːl) n (Physical Geography) a small hill or mound, such as a secondary volcanic cone[C18: via French from Late Latin monticulus, diminutive of Latin mons mountain]