Fondly

wiktionary

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From Middle English fondly, fondely, fonnedli, equivalent to fond +‎ -ly.

etymonline

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fondly (adj.)

mid-14c., "foolishly," from fond + -ly (2). Formerly sometimes in a bad sense, "with indiscreet or excessive affection" (1762). Meaning "affectionately" is from 1590s.