interfere vb
1 to interpose, esp. meddlesomely or unwarrantedly; intervene
2 to come between or in opposition; hinder; obstruct
3 Euphemistic to assault sexually
4 to strike one against the other, as a horse's legs
5 (Physics) to cause or produce interference
(C16: from Old French s'entreferir to collide, from entre- inter- + ferir to strike, from Latin ferire)
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interferer n
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interfering adj
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interferingly adv