ugu

/uɡu/

(n.) a person's strength, vigour, stamina, pictured as the back that bears them; used almost only in the possessed form, in fixed expressions about it breaking or running out such as ugusu sınarğa and ugusu tügenirge

ugusu sındı — his strength gave out
ağaç keseme deseŋ, uguŋ sınar — if you set out to cut timber, your strength will give out
tügenŋen edi ugusu — her strength had run out
awur işden ugum sınğandı — my strength has given out from the heavy work
qartnı ugusu tügenŋendi — the old man's strength has run out

Idioms

ugusu sınarğa — be worn out

Cases and owners

Singular — cases of ugu, plain and with an owner
Case	—plain	menimy	seniyour	anıhis / her	bizniour	sizniyou all's	alanıtheir
Nominativethe strength	—ugu	meniugum	seniuguŋ	anıugusu	bizniugubuz	sizniuguğuz	alanıuguları
Genitivethe strength's	—ugunu	meniugumu	seniuguŋu	anıugusunu	bizniugubuznu	sizniuguğuznu	alanıugularını
Accusativethe strength (as the object)	—ugunu	meniugumu	seniuguŋu	anıugusun	bizniugubuznu	sizniuguğuznu	alanıuguların
Dativeto the strength	—uguğa	meniuguma	seniuguŋa	anıugusuna	bizniugubuzğa	sizniuguğuzğa	alanıugularına
Locativein / at the strength	—uguda	meniugumda	seniuguŋda	anıugusunda	bizniugubuzda	sizniuguğuzda	alanıugularında
Ablativefrom the strength	—ugudan	meniugumdan	seniuguŋdan	anıugusundan	bizniugubuzdan	sizniuguğuzdan	alanıugularından

There is no plural of this word. The ending would attach like any other — it is the word, not the grammar, that refuses: this is not something Karachay counts.

Whose it is

Belonging to ugu — the strength's one
Case	one thing, one owner	several things, one owner
Nominativethe strength	one thing, one ownerugunuqu	several things, one ownerugunuqu
Genitivethe strength's	one thing, one ownerugunuqunu	several things, one ownerugunuqulanı
Accusativethe strength (as the object)	one thing, one ownerugunuqun	several things, one ownerugunuqulanı
Dativeto the strength	one thing, one ownerugunuquna	several things, one ownerugunuqulağa
Locativein / at the strength	one thing, one ownerugunuqunda	several things, one ownerugunuqulada
Ablativefrom the strength	one thing, one ownerugunuqundan	several things, one ownerugunuquladan

The endings are the same ones the pronouns wear — that page explains when each case is used.