Lehestik

Lehestik is an Estonian noun with two primary senses. In botany, it denotes the foliage of a plant—the collective leaves that form the leaf canopy. The word is formed from leht meaning "leaf" and the suffix -istik, which indicates a collection or system. Lehestik includes aspects such as leaf type (simple or compound), arrangement (opposite, alternate, or whorled), and structure (blade, petiole, rachis in compound leaves). Leaves perform photosynthesis, regulate water loss, and help manage temperature, with lehestik responding to seasonal changes such as deciduous shedding or foliation patterns.

In publishing and information materials, lehestik is also used to refer to leaflets or brochures—short, printed materials distributed to inform or advertise to audiences. Such lehestik can cover products, services, events, or public notices and is typically produced in multiple copies and sizes (for example A4 or A5). The term is common in Estonian-language contexts and is disambiguated by surrounding content.

Overall, lehestik serves as a versatile term in Estonian, linked to both the natural world of plant leaves and the practical realm of printed informational material.