IPA: /ˈtrɪb.jʊ.təri/
KK: /ˈtrɪb.jə.ter.ɪ/
Noting or relating to something that contributes or adds to a larger whole, often in the context of payments or supplies.
The tributary system allowed smaller nations to support the empire with resources.
A smaller stream or river that flows into a larger one.
The river is fed by several tributaries that bring in fresh water.
Tributary → It is formed from "tributarius" (from Latin, meaning contributing or paying tribute) and the suffix "-ary" (meaning relating to or connected with). A tributary is a stream or river that contributes water to a larger body of water, such as a river or lake.
Think of a stream that 'contributes' ('tributarius') its water to a larger river — that's why a tributary is a smaller river that flows into a bigger one.