Fully
来自Big Physics
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Old English fullīce (see full1, -ly2).
wiktionary
From Middle English fully, fulliche, volliche, from Old English fullīċe(“fully”), equivalent to full + -ly. Compare German völlig(“fully”), Swedish fullt(“fully”).
etymonline
fully (adv.)
Old English fullice "entirely; perfectly; completely;" see full (adj.) + -ly (2). Of similar formation are Dutch vollijk, German ööllig, Danish fuldelig.
