ETYM Latin fortuitus; akin to forte, adv., by chance, prop. abl. of fors, fortis, chance. Related to Fortune.
Occurring by happy chance.
By or due to chance.
ETYM Cf.French occasionnel.
1. Occurring from time to time.
2. Acting as the occasion or contributing cause of something.
3. Encountered, occurring, appearing, or taken at irregular or infrequent intervals.
4. Acting in a specified capacity from time to time.
5. Designed or constructed to be used as the occasion demands.