Also Calm. [By Jamieson identified with CALM sb.2 a mold, or frame; but this is doubtful.] The HEDDLES of a loom. Hence Caaming vbl. sb.
1792. Adam, Rom. Antiq., 523. The principal part of the machinery of a loom, vulgarly called the Caam or Hiddles, composed of eyed or hooked threads, through which the warp passes, and which, being alternately raised and depressed by the motion of the feet on the Treadles, raises or depresses the warp, and makes the shed for transmitting the shuttle with the weft, or something similar, seems also to have been called LICIA.
1808. Jamieson, s.v. Calm.
1874. Knight, Dict. Mech., Caam, the weavers reed. The sley or slaie. Caaming, the setting of the reed by the disposing of the warp-threads.