The story
From indistinguishable + -ly.
Etymology from Wiktionary, CC BY-SA 4.0.
indistinguishably
Today it means: In an indistinguishable manner; so that separate components or differences cannot be discerned. Full definition →
Today it means: In an indistinguishable manner; so that separate components or differences cannot be discerned. Full definition →
From indistinguishable + -ly.
Etymology from Wiktionary, CC BY-SA 4.0.