An example of persevere is when you have a hard time learning to play the piano but you just keep trying.
Origin of persevereMiddle English perseveren ; from Old French perseverer ; from Classical Latin perseverare ; from perseverus, very severe, strict ; from per-, intensive + severus, severe
intransitive verbper·se·vered, per·se·ver·ing, per·se·veres
Origin of persevereMiddle English perseveren, from Old French perseverer, from Latin persevērāre, from persevērus, very serious : per-, per- + sevērus, severe; see segh- in Indo-European roots.
(third-person singular simple present perseveres, present participle persevering, simple past and past participle persevered)