1 (with to) inclined to; likely to experience etc -- rawan
He is prone to illness.
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.
Kita dapat menyelesaikannya selangkah demi selangkah berapa panjang jalannya dan tidak dapat diselesaikan betapapun pendeknya jalannya jika Anda bahkan tidak menandai jejak kaki Anda.