assessĭo (ads-), ōnis, f. [assideo],
a sitting by or near one (to console him): oblitum me putas, quae tua fuerit adsessio, oratio, confirmatio animi mei fracti? Cic. Fam. 11, 27, 4.
adsessiō (ass-) ōnis, f adsideo, a sitting near . ...
An Elementary Latin Dictionary