Clauson (1972)
An etimological dictionary of pre-thirteenth-century Turkish
p. 376
boş/?bo:ş
basically ‘not subject to external control, free’ (not very different fr. erklig) with extended meanings like ‘empty’ as opposed to ‘full’, and ‘soft’ as opposed to ‘hard’. The original length of the vowel is uncertain; Kaş. lists both forms, but it is short in SW Tkm.; it does not seem to exist in Yakut. S.i.a.m.l.g. with minor phonetic changes. Türkü viii ff. IrkB 29 (ut-): Uyğ. viii ff. Man. M I 17, 2 ff. (işsiz): Bud. (then you must imagine that various cakras) bu burxan etözin boş kılmışın ‘have set free this Buddha-body’ TT V 6, 46; o.o. TT II 6, 33 etc. (irinçü:): Civ. (if a man’s voice fails or) edgüti boş ünmeser ‘will not come out well and freely’ H I 146: Xak. xi boş yılkı: al-dābbatu’l-musayyaba ‘an animal that is allowed to go free’ (cf. ıduk); hence one says ol işle:r boş <kıldı: omitted> ṭallaqa’l-mar’a ka-annahu ahmalahā ‘he divorced the woman, as if he let her go free’; and one says ol kul boş kıldı: ‘he emancipated (a‘taqa) the slave’; and al-ḥurr ‘free’ is called boş, as in the prov. boş ne:gke: içli: bolma:s ‘a thing which is allowed to go free (al-muhmal) has no owner’ Kaş. I 330; bo:ş kisi: ‘a free (ḥurr) man’: bo:ş ura:ğut ‘a divorced (ṭalīq) woman’: bo:ş elig yad fāriğa mina’l-‘amal wa’l-māl ‘a hand without work or property’: bo:ş et ‘soft (raxw) meat’, also used of soft ground: bo:ş at ‘a loose (muṭlaq) horse’: and one says bo:ş ev ‘an empty (fāriğ) house’, and vessels and tools that are not in use (al-fāriğa mina’l-‘amal) are called bo:ş III 124: KB boş âzâd kişi barça edgü kulı ‘a free, independent man is the servant of all good (men?)’ 2307: xiii(?) At. tili boş kişi ‘a man with an unbridled tongue’ 137: xiv Muh. al-xālī ‘empty’ (opposite to ‘full’ do:lu:) (nemesiz; one MS.) bo:ş Mel. 54, 9 (Rif. 151 ata:sız); ḥurr (opposite to ‘slave’ kul) bo:ş Rif. 151 (only): Çağ. xv ff. boş (1) xālī (quotn.); (2) sust ‘soft, idle’, etc. San. 135v. 17: Kom. xiv boş ‘empty’ (space) CCG; Gr.: Kıp. xiii al-fāriğ (opposite to ‘full’ tolu:) bo:ş wa huwa’l-xālī wa’l-ṭalāq (‘divorce’) Hou. 27, 17: xiv boş ṣafr (‘empty’) wa xālī: bo:ş (‘with back vowel’) munṭaliq ‘released, set free’ İd. 32: xv xālī boş Tuh. 14b. 6; xalā, tafarrağa ‘to be unoccupied’ (boşan- and) boş bol- do. 14b. 12; xāba ‘to be disappointed’ boş kayıt- do. 15a. 8; fāriğ boş do. 28a. 2; ‘soft’ (yaş and) boş do. 31b. 7: Osm. xiv ff. boş noted in several phr. TTS I 114; II 161; III 108-9.