English

innersole

From inner + sole.

A compound of inner + sole

Proto-Indo-European *h₁én ‘in’

…

Proto-West Germanic *in ‘in’

Old English in ‘in’

Old English innera ‘inner’

Middle English inner

English inner

Latin sōlus ‘alone, single, solitary, lonely’

Old French sol ‘alone’

Middle English sole

English sole

Today it means

noun An insole; a cushioning layer lining the inside bottom of a shoe or boot.

Language periods are conventional ranges, not dates for this word.

Etymograph / innersole