Meddle
Middle English (in the sense ‘mingle, mix’): from Old French medler, variant of mesler, based on Latin miscere ‘to mix’.
wiktionary
From Middle English medlen, from Anglo-Norman medler, variant of Anglo-Norman and Old French mesler, meller, from Vulgar Latin *misculō, from Latin misceō(“to mix”).
etymonline
meddle (v.)
early 14c., "to mingle, blend, mix" (a sense now obsolete), from Old North French medler (Old French mesler, 12c., Modern French mêler) "to mix, mingle, to meddle," from Vulgar Latin *misculare (source of Provençal mesclar, Spanish mezclar, Italian mescolare, meschiare), from Latin miscere "to mix" (from PIE root *meik- "to mix").
From late 14c. as "busy oneself, be concerned with, engage in," and in the disparaging sense of "interfere or take part in inappropriately or impertinently, be officious, make a nuisance of oneself" (the notion is of meddling too much), which is the surviving sense of the word. From mid-14c. to c. 1700 it also was a euphemism for "have sexual intercourse." Related: Meddled; meddling.
