Junction

google

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early 18th century (in junction (sense 3)): from Latin junctio(n- ), from jungere ‘to join’.

wiktionary

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From Latin iūnctiō(“union, joining, uniting”), from iungō(“join, attach together”). Equivalent to join +‎ -tion.

etymonline

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junction (n.)

1711, "act of joining," from Latin iunctionem (nominative iunctio) "a joining, uniting," noun of action from past-participle stem of iungere "to join together" (from nasalized form of PIE root *yeug- "to join"). Meaning "place where two or more things come into union or are joined" first attested 1836, American English, originally in reference to railroad tracks.