From <span class="searchmatch">теплъ</span> (teplŭ) + -ость (-ostĭ), from Proto-Slavic *teplъ. теплость • (teplostĭ) f warmth Attested once and as теплостиѭ (teplostijǫ) ^ Ретъко, editor...
(garama) Old Church Slavonic: Cyrillic: топлъ (toplŭ) Old East Slavic: <span class="searchmatch">теплъ</span> (teplŭ) Old English: wearm Old Javanese: hangĕt, panas Ossetian: хъарм (qarm)...