icno-.

Headword: 
icno-.
Principal English Translation: 

humble; or, in a sad state, bereaved (see attestations)

Andrés de Olmos: 

Ycno. Este aduerbio se ayunta a nombres y a verbos, anteponese a los nombres y entreponese a los verbos, significa pobreza, o orfandad, o viudez, o ingratitud. Ex. : ycnociuatl, muger biuda, o pobrezilla; -- ycnopiltzintli, huerfano, o pobrezillo; -- ycnoyotica ninemi, biuo pobremente (aqui viene de ycnoyutl, que es pobreza ); -- nicnopillauelilocati, hagome ingrato.
Andrés de Olmos, Arte para aprender la lengua Mexicana, ed. Rémi Siméon, facsimile edition ed. Miguel León-Portilla (Guadalajara: Edmundo Aviña Levy, 1972), 183.

Attestations from sources in English: 

icnocihuatl = a widow or a woman of humble means
icnopiltzintli = an orphan or a little one of humble means

icnocuicatl = bereavement song
John Bierhorst, Cantares Mexicanos: Songs of the Aztecs (1985), 168–169.

themes: 
Emotions
Family, Kinship, Descent