jumping-off
UK[ˈdʒʌmpɪŋ ɒf]US[ˈdʒʌmpɪŋ ɔːf]
n
a point of departure, especially the starting point for a journey or venture.
n
a decisive moment at which one embarks on a new course of action.
Etymology
the term 'jumping-off' originates from the literal action of leaping from a place, such as a riverbank or a dock. by the early 19th century, it had evolved into a metaphorical noun in american english, specifically denoting a remote frontier settlement or the point from which an expedition into the wilderness would begin. this semantic shift captures the concept of a final outpost of civilization, the place where one literally 'jumps off' into the unknown. its modern usage retains this core idea of a starting point for any new or significant undertaking, abstracted from its geographical origins.
Analysis
this is a compound noun formed from the present participle of the verb 'jump' and the preposition/adverb 'off'. it functions as a fixed lexical unit.
Examples
the small port town served as the jumping-off point for explorers heading into the interior.
graduating college was the jumping-off point for her successful career in technology.
they used the investor's capital as a financial jumping-off point to launch their startup.