ETYM French miner, Latin minare to drive animals, in Late Lat. also, to lead, conduct, dig a mine (cf. Eng. lode, and lead to conduct), akin to Latin minari to threaten.
1. To get from the earth; of ores and metals.
2. To lay mines.

That which belongs to me — used without a following noun as a pronoun equivalent in meaning to the adjective my

1. A pit or excavation in the earth from which mineral substances are taken; an ore deposit
2. A excavation in the earth from which ores and minerals are extracted.
3. A rich source of supply

A device that explodes on contact; designed to destroy vehicles or ships or kill personnel.
An encased explosive that is placed in the ground or in water and set to explode when disturbed

My — used before a word beginning with a vowel or h or sometimes as a modifier of a preceding noun — archaic except in an elevated style