1. to come into, enter upon, attain DN.i.215 (samādhiṃ samāpajji); Vin.iii.241 (Pot. ˚pajjeyya); samāpattiṃ Ja.i.77; arahattamaggaṃ AN.ii.42 sq.; Vin.i.32; saññāvedayitanirodhaṃ to attain the trance of cessation SN.iv.293; kayavikkayaṃ to engage in buying and selling Vin.iii.241; sākacchaṃ to engage in conversation DN.ii.109; tejodhātuṃ to convert one’s body into fire Vin.i.25; Vin.ii.76.
2. to become SN.iii.86 (aor. 3^rd pl. samāpaduṃ)

pp samāpajjita samāpanna.

saṃ + āpajjati