The story
- Proto-Indo-European*leyǵ-
- Latinligō
- Late Latinligātūra
- Middle Frenchligature
- Middle Englishligature
- English todayligature
From Middle English ligature, from Middle French ligature, from Late Latin ligātūra, from ligāre (“to tie, bind”).
Etymology from Wiktionary, CC BY-SA 4.0.