Naut. any of various ropes used for tightening or securing some part or thing
Origin of swifter; from obsolete swift, to tighten, fasten with a taut rope
(third-person singular simple present swifters, present participle swiftering, simple past and past participle swiftered)
- (nautical) To tighten (e.g. slack standing rigging) by bringing the opposite shrouds nearer.