Question: what is the meaning of the root word junction?
Answer: 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, ...