Other forms: confluences
A confluence is the point where two rivers join. The confluence of the rivers, at the confluence, a confluence of factors.
Cities grow at them, because two routes meet and the water is deep, which is why so many capitals sit at one. Figuratively a confluence of factors is several causes arriving together, and that use is now at least as common.
1nounconfluenceThe point where two rivers join.
“Khartoum lies at the confluence of the Blue Nile and the White Nile.”
confluence is a junction.
Latin confluentia means a flowing together — con plus fluere, to flow. Fluid and influence are relatives.
Latin
cōnfluentia — a flowing together, conflux
Middle English
confluence
English, today
confluence
Built from
From late Middle English confluence, from Latin cōnfluentia (“a flowing together, conflux”), from cōnfluēns + -ia.
Etymology from Wiktionary, CC BY-SA