Submitted by György Chityil ... on Fri, 01/19/2018 - 21:56 Hierarchy: VerbDescription: {{context|mechanical}} To alter the vertical angle of the jib of a crane so as to bring it level with the load.Ngram: luffNgram Text: luffSource: WiktionaryIssue: 0Wiktionary tag: mechanicalNgram Count: 1