the word 'telescopic' is a modern scientific formation built upon the earlier noun 'telescope'. it combines two ancient greek roots: 'tēle-', meaning 'far off', and 'skopein', meaning 'to look at'. the literal construction 'seeing what is distant' perfectly captures the primary function of the instrument. the adjectival suffix '-ic', of latin and greek origin, was then appended to form a word describing anything pertaining to or achieved by a telescope. the secondary meaning, describing collapsible sections that extend, is a metaphorical extension from the way old refracting telescopes were constructed from sliding tubes.

Structure: tele (distant) + scop (see) + ic (adjective suffix) tele (from greek 'tēle-', meaning 'far off, distant', a combining form indicating distance); scop (from greek 'skopein', meaning 'to look, see, examine', a combining form indicating viewing); ic (from latin '-icus', via old french '-ique', an adjective-forming suffix meaning 'of, pertaining to, or having the nature of')