Lewis & Short

Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.

grōma or grūma, ae, f.

  1. I. A surveyor’s pole or measuring-rod, acc. to Paul. ex Fest. s. v. p. 72 Müll. and Non. 63, 6.
    Hence,
  2. II. Transf., the centre of a camp, where the measuring-rod was planted, so as to divide the camp into four quarters by streets meeting at that point, Hyg. de Limit. p. 164 Goes.

grūma and grūmātĭcus, v. grom-.