The story
From idiosyncratic + -ally. By surface analysis, idio- + syn- + -cratic + -al + -ly.
Etymology from Wiktionary, CC BY-SA 4.0.
idiosyncratically
Today it means: In an idiosyncratic manner. Full definition →
Today it means: In an idiosyncratic manner. Full definition →
From idiosyncratic + -ally. By surface analysis, idio- + syn- + -cratic + -al + -ly.
Etymology from Wiktionary, CC BY-SA 4.0.