Entry record from Schapper (2020): Wersing Peitoko
tbisil[tˈbisil]
• vi. firm; solid (used of babies who are sturdy).kencang; keras (misalnya badan bayi).
Ol pok ipite gaisir, pangpo gis tbisil borong.The child is just born but it's body is very solid., Anak baru lahir, tetapi badan kencang.