I am interested in the history of a group of English words that all go back one way or another to Latin unda "wave": undulate; abundant; to abound. The etymologies given on websites like Wiktionary and Etymonline are straight enough and show the ways of these words from Latin unda to elaborated Latin forms like abundāre to Late Latin, Medieval Latin, Old French, Norman French and then Middle to Modern English (not always with all the intermediate steps, however.) What I could not decide based on the material that I found: Are these word inherited, i.e. are there direct lines from Latin to English, or was there some borrowing and loaning? And if yes, when did the loaning probably occur? Did the French typically loan Late Latin and Medieval Latin words into their Old French language? Are there online sources detailing this, or is this info buried in special books so far?