Origin: Latin suffix -ary
Ancillary has 3 different meanings across 1 category:
Something that serves an ancillary function, such as an easel for a painter.
"The artist set up his painting on the canvas while keeping the heavy wooden easel nearby to serve its essential ancillary role in holding the work upright."
Subordinate; secondary; auxiliary
"The hotel's main attraction is its stunning ocean view, but the ancillary services like room service and housekeeping are equally important for a comfortable stay."