An Etymological Dictionary of Astronomy and Astrophysics

<i<General: Capable of existing harmoniously with another or others.
Informatics: of a software or peripheral device, capable of working with another computer or computer
system without modification.

Etymology (EN): M.Fr. compatible, from M.L. compatibilis, literally “sympathetic,” from L.L. compati, from → com- “together”

• pati “to suffer, undergo;” PIE base *pe(i)- “to hurt” (cf. Skt. pijati “reviles, scorns,” Gk. pema “ruin, affliction,” Av. pâman- “scab; skin disease”) + -ible, → -able.

Etymology (PE): Sâzgâr variant sâzkâr “consonant, in accordance, agreeing,” from sâz- present tense stem of sâzidan, sâxtan “to adapt, adjust, be fit; to build, make, fashion,” Mid.Pers. sâxtan, sâz-, Manichean Parthian s’c’dn “to prepare, to form,” Av. sak- “to understand, to mark,” sâcaya- (causative) “to teach;” + agent suffix -gâr, variant -kâr, O.Pers. kara-, O.Pers./Av. kar- “to do, make, build,” Av. kerenaoiti “makes,” cf. Skt. kr- “to do, to make,” krnoti “makes,”
karma “act, deed;” PIE base k^wer- “to do, to make.”