Proto-Slavic *slabostь. By surface analysis, слабъ (slabŭ) + ость (ostĭ). <span class="searchmatch">слабость</span> • (slabostĭ) f weakness Старославянский словарь (по рукописям X-XI веков)...
or (по)слабе́й, superlative слабе́йший, adverb сла́бо, abstract noun <span class="searchmatch">сла́бость</span>, diminutive сла́бенький) weak, feeble faint infirm delicate flabby poor...
IPA(key): [ˈsɫabəsʲtʲjʊ] сла́бостью • (slábostʹju) f inan instrumental singular of <span class="searchmatch">сла́бость</span> (slábostʹ)...
IPA(key): [ˈsɫabəsʲtʲəx] сла́бостях • (slábostjax) f inan pl prepositional plural of <span class="searchmatch">сла́бость</span> (slábostʹ)...
IPA(key): [ˈsɫabəsʲtʲəmʲɪ] сла́бостями • (slábostjami) f inan pl instrumental plural of <span class="searchmatch">сла́бость</span> (slábostʹ)...
IPA(key): [ˈsɫabəsʲtʲɪj] сла́бостей • (slábostej) f inan pl genitive plural of <span class="searchmatch">сла́бость</span> (slábostʹ)...
IPA(key): [ˈsɫabəsʲtʲəm] сла́бостям • (slábostjam) f inan pl dative plural of <span class="searchmatch">сла́бость</span> (slábostʹ)...
(Glagolitic): ⱄⰾⰰⰱⱏ (slabŭ) From Proto-Slavic *slabъ. слабъ • (slabŭ) weak <span class="searchmatch">слабость</span> (slabostĭ) Russian: слабый (slabyj) Bulgarian: слаб (slab) → Romanian:...
[ˈsɫabəsʲtʲɪ] сла́бости • (slábosti) f inan or f inan pl inflection of <span class="searchmatch">сла́бость</span> (slábostʹ): genitive/dative/prepositional singular nominative/accusative...
(ərgəʒin) weakness эргэскэ (ərgəskə) Cincius, V. I., Rišes, L. D. (1952) “<span class="searchmatch">слабость</span>”, in Русско-эвенский словарь [Russian–Even Dictionary], Moscow, page 566a...