Tripod

google

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early 17th century: via Latin from Greek tripod-, tripous, from tri- ‘three’ + pod-, pous ‘foot’.

wiktionary

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Borrowed from Latin tripūs, tripodis, from Ancient Greek τρίπους(trípous); equivalent to tri- +‎ -pod. Doublet of tripus.

etymonline

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tripod (n.)

c. 1600, "three-legged vessel," c. 1600, from Latin tripus (genitive tripodis), from Greek tripous (genitive tripodos) "a three-legged stool or table," noun use of adjective meaning "three-footed," from tri- "three" (see tri-) + pous (genitive podos) "foot" (from PIE root *ped- "foot"). Related: Tripodal.