0 one of nine equal parts. -- devítina
1 (also adjective) the last of nine (people, things etc); the next after the eighth. -- devátý
We can complete it step by step however long the road is and it can't be completed however short the road is if you don't even mark your footprint.
Můžeme to dokončit krok za krokem, ať je cesta jakkoli dlouhá, a nelze ji dokončit, ať je cesta jakkoli krátká, pokud si ani neoznačíte svou stopu.