moonlet

noun

Etymology: Etymology tree Proto-Indo-European *meh₁-? Proto-Indo-European *mḗh₁n̥s Proto-Germanic *mēnô Proto-West Germanic *mānō Old English mōna Middle English mone English moon Proto-Indo-European *-lós Proto-Indo-European *-elós Proto-Italic *-elos Latin -lus Latin -ellus Old French -el Proto-Indo-European *-tós Proto-Italic *-tosder.? Late Latin -ittus Old French -et Old French -eletbor. Middle English -let English -let English moonlet From moon + -let.

1. a very small body orbiting a planet, often as part of a planetary ring system.

   “"A moonlet within the ring system will exert a systematic torque on ring material."”