Obs. Naut. App. = SWIFTER.
Knight, Dict. Mech. gives this form with the definitions of SWIFTER a, b, but they seem to be wrongly inferred from the entry swift in Smyths Sailors Word-bk.
13367. Acc. Exch. K. R. 19/31 m. 5 (P.R.O.). In D. Swiftes emptis in Grosso apud lenne de Iohanne de Kyngestone. Ibid. In ij. petris cord. de canabo pro swifftes et robond inde faciendis.