German upstîch, from Old Saxon *upstīg, from Proto-West Germanic *uppastigi. <span class="searchmatch">Upstieg</span> m (plural Upstiegen) An upward climb, an ascent Ascension upstiegen...
Proto-West Germanic *uppastigi (“ascension”). Cognate with German Low German <span class="searchmatch">Upstieg</span>, Middle English upstiȝe, upsti, upstei. IPA(key): /ˈaʊ̯fˌʃtiːk/ (standard)...