[f. SPILE sb.3] trans. To furnish, secure, or strengthen with timber or iron piles; = PILE v.1 1.
1829. Brockett, N. C. Gloss. (ed. 2), Spile, to make a foundation in soft or boggy ground … by driving in spiles; i. e. piles or pieces of timber.
1869–. in dial. glossaries, etc.
