1944 July and August, “Top Link Drivers: XXI—Driver H. Blunt, L.N.E.R.”, in Railway Magazine, page 226:
Having completed their task, Fireman Page telephoned from a lineside box to the next signal cabin, briefly reported the incident and said that, as no high explosive had dropped and the track was safe, they proposed proceeding "at caution".
1960 December, “Talking of Trains: The railways and the Devon floods”, in Trains Illustrated, page 709:
[...] and on the Saturday heavy seas pounded the W.R. on its exposed coastal stretch between Dawlish and Teignmouth, loosening the ballast and forcing trains to proceed with extreme caution.
(intransitive) To pass from one point, topic, or stage, to another.
There the missionaries learned that they were to stay for a longer period, and they were lodged in a shed surrounded by rice fields. This was different from what they had expected, because they had been told in Canton that Father Ts’ai had arranged for a place in Hsiang-t’an. They therefore wished to proceed to Hsiang-t’an, but since that was impossible under the circumstances, they asked Liu Shêng-tuan to be their messenger to Father Liu asking him to come to them.
(intransitive) To come from; to have as its source or origin.
1726, John Ayliffe, Parergon Juris Canonici Anglicani: Or, A Commentary, by Way of Supplement to the Canons and Constitutions of the Church of England.[…], London: […] D. Leach, and sold by John Walthoe[…], →OCLC:
[This rule] only proceeds and takes place, when a person cannot of common Right condemn or bind another by his Sentence.