An Etymological Dictionary of Astronomy and Astrophysics

1a) General: A sharp or tapering end, as of a dagger; a projecting part of anything.
1b) Physics: Position or time of occurrence, as in boiling point, freezing point, etc.
1c) Math.: A dimensionless geometric element whose location in space is defined solely by its coordinates.

2. To direct a telescope toward a particular position on the sky.

Etymology (EN): M.E. point(e); O.Fr. point “dot, mark, place, moment;” L. punctum noun use of neuter p.p. of pungere “to prick, pierce.”

Etymology (PE): 1) Noqté, loan from Ar. Pandé, variants in classical dictionaries pindé, pendé, fand “a point, dot, mole, freckle;” cf. Skt. prānta- “point, tip, border,” from pra “before, forward,” → pro-, + ánta- “end, limit, term;” Pali, panta- “remote, solitary;” Prakrit panta " last;" Sindhi pandu “border of a garment;” Lahnda pand, pad “end, top of sugar cane.”

2. Ãmâjidan, verb from âmâj “aim, goal,” from Proto-Iranian base *āma-, from prefix *ā- + *ma- “to measure;” cf. Av. mati- “point, tip;” O.Pers./Av. mā(y)- “to measure;” Pers. mun/mân “measure,” as in Pers. terms pirâmun “perimeter,”
   âzmun “test, trial,” peymân “measuring, agreement,” peymâné “a measure; a cup, bowl;” cf. Skt. mati “measures,” matra- “measure,” Gk. metron “measure,” L. metrum; PIE base *me- “to measure.”