Robot, is a fairly modern word in English language.
The origin of the word is from Old Czech words: Robotnic= forced labor; Robota=forced labor, compulsory service, or drudgery; and Robotiti= to work, or to drudge.
These are further derived from Old Slavic, Rabu= Slave, or Rabota= servitude.
Husband: A male spouse joined to another person by a contract of marriage.
This word is derived from Old Norse husbondi "master of the house," literally "house-dweller," from hus "house" + bondi "householder, dweller, freeholder, peasant," from buandi, present participle of bua "to dwell".