Structurally, from Sanskritic tatpuruṣa compound of অঘটন (ôghôṭôn) + ঘটন (ghoṭon) + পটিয়সী (pôṭiẏôśi).
অঘটনঘটনপটিয়সী • (ôghôṭônghôṭônpôṭiẏôśi) f