A glossary of provincial and local words used in England. Francis Grose. 1790.
farrantly — far·rant·ly … English syllables
farrantly — adverb see farrand … Useful english dictionary
farrant — adjective Short in height or time, used commonly in Surrey, England. e.g. He is quite farrant! (height), I shall be there farrantly (time) … Wiktionary