镌 is literary and pairs almost exclusively with hard surfaces: 镌刻 (juānkè, to carve), 镌石 (juānshí, to engrave stone), 镌印 (juānyìn, to engrave a seal). For everyday 'carve', use 刻 (kè).
memory
The 钅(metal) radical hints at engraving — you need a metal tool to cut into stone. 隽 (jùn) on the right gives the sound.
