IPA: /ɪnˈfɔːl/
KK: /ɪnˈfɔl/
The act of falling towards a large astronomical object due to its gravitational pull, often referring to gas moving rapidly towards a neutron star or black hole, or the area where water and runoff enter a drainage system.
The infall of gas into the black hole created a bright flash of light.
The word 'infall' originates from the Latin 'infallere', which is formed from 'in-' (meaning not) and 'fallere' (meaning to deceive or fail). Thus, 'infall' refers to the concept of not failing or being incapable of error.
Think of 'not failing' — 'in-' means not, and 'fallere' means to fail. This helps you remember that 'infall' refers to something that does not fail.