'doomsdaylike' originates from English, specifically the compound of 'doomsday' and the suffix '-like', where 'doom' originally meant 'judgment' and '-like' meant 'having the form or nature of'.

'doomsdaylike' formed by combining Old English elements: 'dōm' (judgment) + 'dæg' (day) produced 'doomsday' (meaning 'day of judgment'), and the Old English adjective-forming element 'līc' (body, form) became the suffix '-like'; these elements were joined in modern English to produce the adjective 'doomsdaylike'.

Initially, 'doomsday' referred specifically to the 'day of judgment'; over time the compound with '-like' evolved to mean 'resembling an end-of-the-world or catastrophic scene' rather than only literal theological judgment day.