The story
Partial calque of Russian могилиза́ция (mogilizácija), originally a blend of моги́ла (mogíla, “grave”) + мобилиза́ция (mobilizácija, “mobilization”), as if from моги́ла (mogíla, “grave”) + -иза́ция (-izácija, “-ization”).
Etymology from Wiktionary, CC BY-SA 4.0.