- incohare – start, start upon, to begin, turn to
- incoho – start, start upon, to begin, turn to
- ineo – begin, commence, go in, start, to begin, to enter, undertake
- initium – beginning, commencement, origin, start
- ordior – start, to begin
- ordiri – start, to begin
- originis – ancestor, beginning, origin, source, start
- origo – ancestor, beginning, origin, source, start
- orsa – beginning, first few words, start, undertaking
- orsorum – beginning, first few words, start, undertaking
- orsus – a beginning, initiative, start, to begin, undertaking
- satus – beginning, origin, planting, sowing, start
- Ex turpi causa non oritur actio – From a dishonorable cause an action does not arise
- fons et origo – the spring and source
- vita summa brevis spem nos vetat incohare longam – the shortness of life prevents us from entertaining far-off hopes