Lewis & Short

ob-lăquĕo, āre, v. a.

  1. I. To dig about the roots of trees, etc. (cf. ablaqueo): arbores oblaqueatae sunt, Col. 2, 14, 3; Isid. Orig. 17, 5, 31.
  2. II. To surround, encircle, set (eccl. Lat.): argento gemmas oblaqueare, Tert. Res. Carn. 7.