IPA: /ˈɪɡ.ni.əs/
KK: /ˈɪɡniəs/
Relating to rocks that are formed from the cooling and solidification of molten material, such as magma or lava.
The igneous rock was formed from cooled lava after the volcanic eruption.
Igneous → It is formed from "ignis" (meaning fire) in Latin. The word "igneous" refers to rocks or minerals that are formed from the solidification of molten material, hence relating to fire.
Think of 'fire' ('ignis') to remember that 'igneous' refers to rocks formed from molten material, like those created by volcanic activity.