Node

google

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late Middle English (denoting a knotty swelling or a protuberance): from Latin nodus ‘knot’.

wiktionary

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From Middle English node, borrowed from Latin nōdus. Doublet of knot and nodus.

etymonline

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node (n.)

early 15c., "a knot or lump," from Latin nodus "knot" (from PIE root *ned- "to bind, tie"). Originally borrowed c. 1400 in Latin form, meaning "lump in the flesh." Meaning "point of intersection" (originally in astronomy, of planetary orbits with the ecliptic) is recorded from 1660s.