'planned-release' is a compound formed from the adjective 'planned' (past participle of 'plan') and the noun 'release'. 'plan' originates from French 'plan', originally from Latin 'planum' meaning 'flat surface' (later used for a drawing or scheme); 'release' originates from Old French 'relaisser' / 'releser' meaning 'to leave again, set free'.

'planned-release' emerged through modern English compounding of 'planned' + 'release' to denote a release that has been scheduled; the components 'plan' and 'release' came into English separately (from French/Latin roots) and combined in modern usage.

Individually, 'plan' and 'release' retained their core senses (a scheme/arrangement and the act of letting go or making available); together as 'planned-release' the compound specifically denotes a release that is scheduled, often in commercial or technical contexts.