breakably

Etymology tree Proto-Indo-European *bʰreg-der. Proto-Germanic *brekaną Proto-West Germanic *brekan Old English brecan Middle English breken English break Proto-Indo-European *-dʰlis Proto-Italic *-ðlis Latin -bilis Latin -ābilis Old French -ablebor. Middle English -able English -able English breakable Proto-Indo-European *leyg- Proto-Germanic *līkąder. Proto-Germanic *-līkaz Proto-Germanic *-ê Proto-Germanic *-līkê Old English -līċe Middle English -ly English -ly English breakably From breakable + -ly.

来源：wiktionary