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rucksack Etymology Atlas
a bag with shoulder straps carried on the back; a backpack Pro
Word
Root
Affix
Tap any word to open its Atlas. Pinch to zoom, drag to pan.
rucksack is a Level C2+ word — Pro only
Pro unlocks the Etymology Atlas for levels A2–C2 — plus FSRS-5 spaced repetition, mastery tracking, and the activity dashboard.