While possibly an aphetic form of espine (cf. DMF and FEW), the word in Anglo-Norman is more likely to be a borrowing from English (Old English pin), which itself is believed to derive from Classical Latin pinna ('feather', see penne1).
(
MS: s.xiii/xiv
)
cavilla (glosses: (L) pin)(var. (D: s.xiii/xiv) chevil) axi firmiter sit intrusa
i 185.156 and ii 74.156
(
1377-82
)
.ij. grantz pinnes de feer
E101/547/21/7
2footwearleather patch or laminate that is attached to the vamp of the shoe for custom fitting:
(
MS: s.xiii
) Pictaciarii viles sunt qui consuunt sotulares veteres renovando pictacia et intercutia, soleas et inpedias gloss: (L) vampes, les pinnes(var.
(D: s.xiii/xiv) empenes;
(D*: s.xiii/xiv) enpeyns, wanpeys
)i 197.24 and ii 129.24
pin2 (s.xiii1)