Part of speech: Noun
space by the side of a bed (especially the bed of a sick or dying person)
Example: the doctor stood at her bedside
Categories: Side
The word "bedside" comes from Middle English bedsyde. Many other languages have similar words:
bed – A related word in the same word family.
side – A related word in the same word family.
Middle English had more flexible word order than Modern English because it retained more inflections.