English
fissban
Blend of fissile + ban.
Proto-Indo-European *bʰeyd- ‘to split’
Proto-Indo-European *bʰidtós ‘split, cloven’
Latin fissus ‘split, cloven’
Latin fissilis ‘able to be split’
English fissile
Proto-Indo-European *bʰeh₂- ‘to speak’
…
Proto-Germanic *bannaną ‘to proclaim’
Proto-West Germanic *bannan ‘to proclaim’
Old English bannan ‘to summon, command, proclaim’
Middle English bannen ‘to summon’
English ban
Today it means
noun A ban on the production of fissile material.
Language periods are conventional ranges, not dates for this word.
Etymograph / fissban