Aiguille De filen aiguille = Bit by bit; One thing leading to another.
For thei mesured noght hemself Of that thei ete and dronke, Thei diden dedly synne 9070 That the devel liked, So vengeaunce fil upon hem For hir vile synnes; Thei sonken into helle, The citees echone.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "fil" in a variety of sentences. We hope that you will now be able to make sentences using this word.