'gateway-related' is a compound word formed from 'gateway' and the suffix '-related', where 'gateway' refers to an entry or access point and '-related' means 'connected to or associated with'.

'gateway' comes from Middle English 'gate' (meaning 'door' or 'opening') and 'way' (meaning 'path'), while '-related' is derived from the verb 'relate', from Latin 'relatus'. The compound 'gateway-related' is a modern formation used in technical contexts.

Initially, 'gateway' referred to a physical gate or entrance, but in modern usage, especially with 'gateway-related', it refers to digital or network access points and their associated matters.