[f. LAST sb.1 + -ER1.] In Bootmaking, a workman who shapes a boot or shoe, by fixing the parts smoothly on a last.
1878. Ures Dict. Arts, IV. 121. The sole is now taken in hand by the laster, who secures it by a few tacks to the upper [etc.].
1885. H. M. Newhall, in Harpers Mag., Jan., 282/2. The laster is about the only shoemaker left who can still talk fondly of his kit.