From censt(ies) (“to try”) + -ība. The standard stem for this verb has š (es cenšos, “I try”), but dialectally also t (es centos), which explains why there are derived forms with t, like centīgs, centība (“zeal”), and with s, like censonis (“striver, fighter, assiduous person”) or sacensība (“competition”) (and also, colloquially, censīgs, censība).
censība f (4th declension)
| singular (vienskaitlis) | plural (daudzskaitlis) | |
|---|---|---|
| nominative (nominatīvs) | censība | — |
| accusative (akuzatīvs) | censību | — |
| genitive (ģenitīvs) | censības | — |
| dative (datīvs) | censībai | — |
| instrumental (instrumentālis) | censību | — |
| locative (lokatīvs) | censībā | — |
| vocative (vokatīvs) | censība | — |