Etymology
From in- (prefix meaning ‘in, into; towards’) + flood (“overflow of water from a lake or other body of water; flowing in of the tide; to overflow; to cover or partly fill as if by a flood”). Compare Saterland Frisian Íenfloud (“influence”), West Frisian ynfloed (“influence”), Dutch invloed (“influence”), Middle Low German invlôt (“influence”), German Einfluss (“influence”), Danish indflydelse (“influence”), Swedish inflytande (“influence”), Norwegian innflytelse (“influence”).