*swinþaz (“strong”) + *-janą. IPA(key): /ˈswin.θi.jɑ.nɑ̃/ *<span class="searchmatch">swinþijaną</span> to strengthen <span class="searchmatch">Proto</span>-West <span class="searchmatch">Germanic</span>: *swinþijan Old English: swīþan Gothic: *𐍃𐍅𐌹𐌽𐌸𐌾𐌰𐌽...
From <span class="searchmatch">Proto</span>-<span class="searchmatch">Germanic</span> *<span class="searchmatch">swinþijaną</span>. Equivalent to *swinþ (“strong”) + *-jan. *swinþijan to strengthen Old English: swīþan...
*swinþaz strong swift, fleet *sundaz *swinþalīkaz *swinþį̄ *<span class="searchmatch">swinþijaną</span> <span class="searchmatch">Proto</span>-West <span class="searchmatch">Germanic</span>: *swinþ Old English: swīþ Middle English: swith English: swith...