The story
- Latin · derived frominexplicābilis
- Middle French · derived frominexplicable
- Middle English · inherited frominexplicable
- English todayinexplicable
From Middle English inexplicable, from Middle French inexplicable, from Latin inexplicābilis, from in- (“not”) + explicābilis (“explicable”). By surface analysis, in- + explicable.
Etymology from Wiktionary, CC BY-SA 4.0.