[536] "Whatever" means: whoever, of whatever sort … "Bhikkhu" means: … this is the bhikkhu intended in this sense.
A family "with both together" (sabhojana) means: there is both a woman and a man; both have not gone out, both are not devoid of lust.
"Having intruded" (anupakhajja) means: having entered in.
"Should take a seat" (nisajjaṃ kappeyya) means: in a large house, if he sits down having gone beyond hand's reach (hatthapāsa) of the door-frame (piṭṭhisaṅghāṭa), there is an offense of pācittiya. In a small house, if he sits down having gone past the ridge-beam (piṭṭhivaṃsa), there is an offense of pācittiya.
Word-Analysis (Padabhājanīya)
Threefold Pācittiya (Tika-pācittiya)
English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.